Background help

[kingjamez]

Help me out here, and tell me what I need to do to make the background better.I want to improve lighting, and just make it better overal.I'm putting JR Smith in there, so I'm also looking to add maybe some nuggets colors, and maybe a logo if possible.please help.

 

[Opal]

Either you could add a little brushing or a stock(imageafter.com and http://www.surrealdesignz.com/stocks.php