The ground is better textured, but still looks flat...
Chalk is worse... (IMHO)
Water reflection is still off...
Right spraycan is better with the paint leaking out and looks *less* glued-on. The shadows still need help tho.
Tape is better, but like the spraycans, its shadow needs fixing.
Perhaps this: http://www.photoshopcafe.com/tutorials/cast%20shadow/cast%20shadow.htm will help with the shadows.