Excelent job, just a changes a that would be perfect
1) Add WEST ALL STAR (left size in the first photo that you posted) and EAST ALL STAR (right size) in front of the each bench
2) Make the floor bi color (is almost like Target Center, but the middle ins´t to dark)
3) Can you make the center logo a little bigger?
4) Add "NBA ALL-STAR 2010" in the blue part near where is Anthony in the first photo
EDIT
For me its a little better the first one