Looks nice, I've always appreciate the styling of the older p99's.
If you don't mind a few photography tips:
First read about the rule of thirds.
http://www.betterphoto.com/exploring/tips/thirds.asp Lose all the empty space around the subject, place it off center instead of square in the middle and your picture will seem twice an interesting.
Now this is a bit more of a pain, but ammo really loves to reflect light in very nasty ways. You need more diffused lighting to offset this. Option 1 would be using soft boxes around the lighting. Think like a big lampshade that helps spread the light. On a budget a couple thin white sheets suspended over your shooting area can often do the trick. Next you could build something that you can put the subject in. Some people buy light tents or light cubes which is usually something like white nylon stretched around springy material that pops up into a little dome. Just place the lights around it. Some people build their own too
http://www.pbase.com/wlhuber/light_box_light_tent
Looks like you're off to a good start though, keep shooting with both your camera and your 990!