The car one is drawn by you? You should ponder what mindset you had when doing that, because it is the only decent one. All the humans look bad, and I doubt it is because of "style".
The car is by far the 'cleanest' artwork, it looks good. The pictures with people in them have some obvious anatomy issues which are a bit off putting. From what I can see you've got a decent grasp of facial features in terms of proportions and positioning.
AI Bot Choice
Superb Opinion