Great work on both, like the skoda better.
BG is perfect, its nice on its own and even more woth the car because of color match.
I also like a lot the rims, the small " of the rims makes the car looks very realistic and low.
VW's front match the style of the car pretty well but not color matching well.
Side skirt wich I guess is brushed looks very realistic but should be just a little bit darker.
The only big mistake on this chop is the shadow, Dosent look realistic at all,
Fading out on the front and extremly blurry on the back.,
Try C/P a shadow when its a light image like this one or brushing one yourself when its a dark image.
Keep it up
BTW you really impoved recently.
t.