the car is non proportional and the things underneath still look like umbrelas whick makes the proportion issue obvious. If you had made the look like say rocks it would be much more realistic. The adjustment layer or the mask you used should go all the way down. propably you moved the mask and there is a small stripe at the bottom of the image visible.
It's obvious that you used the clone stamp. Next time isolate the areas you clone with the selection tools and always keep in mind not to make obvious to the final image that it was edited, try to make it as realistic as you can.
(241 days ago)
Abduction