First off, I think it’s great that you took the time to rework this piece. Edits and rewrites are such a huge part of the process. In my opinion, they’re the best way we have to make ourselves better, stronger writers. Any good piece of writing deserves multiple drafts. We owe it to ourselves, and we owe it to our work. End of rant, as I’m clearly preaching to the choir.

P1: I don’t think you need that first verb “driving”. I’d prefer to see something more specific, like “Ten miles down/One hour along”. “smoothen out, relax a bit”  pick one, not both, or string them together. As it’s written now, the flow of words is jarring. In the fifth sentence, you reuse two words from earlier: “just” and “even”. If you take those out of this sentence, I would pick one action, either “enjoyed” or “relished”. Dashes between “hell-of-a-lot better”. Don’t need the final “had”. Way to be specific with the mocha and playlist! Also liked “hila monster”; except I think you meant “Gila” and it should be capitalized. (No such thing as a hila monster as far as I know).
P2: I’d make it “anxious anticipation”, combining the two feelings. Not sure how much I like the dash after “effect”; it’s an awkward place to pause. Much improved through this section.
P3: Love this on its own.
P4: Phrases too strung together in that first sentence, feeling a touch out of order. Maybe: “Nothing but dirt and sagebrush clustered in mounds across the barren landscape, almost like little colonies scattered along the roadside. The wind blew so strong, it acted as a blender, creating…” Nice description to top it off. Soooo much better.
P5: I’d keep this with the previous sentence. Maybe. Probably. Yeah, I think so. But maybe not… No need for “beaconed her” but if you can’t let it go, make it “beaconing”. Comma after “then” functional, but not really necessary.
P6: Lovely first sentence. “sole purpose, reason for existence”– pick one, not both. Same thing goes with the final sentence, which I might rewrite as “soldiers on the eve of battle, resigned to their unquestionable fate of death and reincarnation.” Maybe even a different word for “reincarnation”, since they will soon be changed into something else and that could be made more specific. Transmutation? Metamorphosis? Reincarnation’s not bad though.
P7: Who is this “you” (I ask rhetorically)? How about “she” instead? And whose bidding is the serial killer doing? Ordinarily, people don’t do their own bidding. Strict diet regimens would be a lot easier otherwise. “Maze of doom” sounds a bit cliché. This section is much better than before, but still needs some tuning up.
P8: I don’t really like “hoping” there, especially since we have no evidence that there’s something concrete she needs to escape from. Perhaps if she was searching for escape *from* something, like her own rambling thoughts… Absolutely love that last sentence.
P9: Spell out “okay”
P10: “Your” has returned; let’s keep the strawberries in “her” mouth, not mine. Might substitute “floury” for the second “your” for both a change of pace and a texture description opportunity.
P11: I love the word “ethereal”. It’s right up there with “phantasmagoria” and “verisimilitude” on my list of favorite words ever. However, last sentence definitely too conventional. If she *knew* she saw them, then there should be no ifs, ands, ors, or buts. “Surely her mind hadn’t created them.”?
P12: Word of the section: “her”. Change it up a bit. Certainly, a more active description than before. Well done on that.

Final Comments:
-Much much better on the descriptions and a cleaner feel overall.
-There are a number of times when you try to use two descriptions when one will do. Remember that in most situations, one solid descriptive example comes across as strong, but adding another makes the sentence sound wishy-washy.
-You’ll have to make a decision about the ending. The big question: does the reader get a nice big hint about what the heck happened to Diana? As it reads, I get the impression she blacks out under the sole pressure of her own imagination. In the earlier draft, it seemed like she collided with another vehicle. If this is still the case, I think it should be more obvious to the reader, which will likely involve a more thorough description of the lights, and possibly some added sound (horn honking, tires squealing, etc., cleverly disguised with imaginative falderal, of course). If the girls in white or something completely different has something to do with her ultimate breakdown, that should be more obvious as well. Do answers need clear spelling out? No. But hints are nice.

I would heighten the drama a little more. Expand on her fears of the forest, her wild imagination. Make them more intense and vivid to the reader, that way the ending will come as even more of a surprise.

Another thing that might help the “surprise ending” is the reprieve. She starts to go all sound of music on us and envisions some of her favorite things. If you expand on this too, the ending will not only be surprising, but also a little bitter. Which may sound bad, but it can work out really cool.

Final Comments:
-Ah, the overactive imagination: the blessing and curse of so many writers (especially the good ones). Since it appears our gallant heroine possesses one of these as well, you should try working it into the story more through her descriptions.
-Also, she’s relaxed, then in the next moment, excited, and then we’re told the place creeps her out? Something about this doesn’t quite mesh.
-Was, was, was was was waaaaaas (Sung to the tune of Plain White Tee’s “Hate is a strong word”). Too many of these. Yes, sometimes it’s okay to write in passive voice, particularly when describing events of the past. But try to keep things more active with the elimination of some of those “to be” verbs.
-A lot happens in so short a span of words, a true achievement. I’d love to see the next draft!