I'm not sure that this would have a lot of uses as a stock photo, unless it was for a magazine specifically on the topic of role playing. The lighting seems too harsh and not diffuse enough, and the assortment of dice is too disordered to create a focal point for the composition.
ahh I love those dice... :o) to improve the shot try an alternate light source and some manual adjustments to the shutter speed and or apature... if you have them.. the straight on flash doesnt work well for close ups
This pic would've been much better with the right lighting. You have a lot of cool translucent dice but really could've taken advantage with something lighting them up properly, without the whole picture being so bright. Interesting idea for a shot though. Someone is a gamer looks like.