should i continue
i don't feel it does make that much of sense

http://oi57.tinypic.com/28l8idt.jpg
i followed this photo


things considered will make window and grille dark change wheels color

You've done a super job fitting the paint to the shapes of the lexus - it looks almost perfect
The wheels fit really nicely too You should definitely continue

You just need a better backdrop I think - the perspectives and lighting aren't quite right
See if one of these works:
https://farm7.staticflickr.com/6016/6013664501_b8f2a97a0f_o.jpg
https://farm7.staticflickr.com/6136/6013704269_8c4c60ca57_o.jpg
https://farm7.staticflickr.com/6196/6052004573_f350400eed_o.jpg

Good luck

these are some really good bg
but im not feeling this car