The cars look quite funny to me. They're quite well made, but something about those (rear view) mirrors makes me think of them as poorly constructed butterflies, or metal bumblebees. Which makes me quite happy.
On the other hand: Nice map! Nice screeniess anyway.
The comparison shots made me think (as I am wont to do) of the impression the original doom maps actually give. Back in the day, they were perhaps as convincing, and they still work in doom, but they don't look like the things they represent. At all. Like so many other games, it presents you with symbolic representation. Brick block with dark patches = city structure. White little box with red cross = health provider. Chocolate bar = points.
This easily accepted shortage of detail made me think of dreams. Sometimes my dreams are set in "real" or realistic locations, which allows me to compare a few impressions and details with reality. Dreams, I find, hold few elements at a time, give little detail, and somehow let you know how to perceive the elements you are presented with. My dreams pay little attention to light sources (even if I have dreamt that I cannot see what's happening, the unseen events seem to be "narrated" visually, just with the awareness that "I" am not seeing it). If the sky appears, it tends to be an undefined darkish overhang. Night, overcast - unless it is important, I won't know or care. Also, dream layouts usually skip a few locations, misplace some and add others.
You may have seen this coming for a while: The original doom maps feel like dream degenerations.
And your screenshots look to me like Chaos-invasion Before/After comparisons. "This used to be somebody's suburban garage. Now it's a vaguely defined symbol of its past, teetering on the edge of limbo."
Off topic? Just a little, I hope.