So heres the setup. I threw together a wood frame, tacked a bedsheet to it, got a piece of silver posterboard i found in my closet, and threw it all together in about 20 minutes. I then decided to use my underwater strobes and set them on each side of the softbox (only strobes i have that use a sync cord, i need to buy one for my 580). The setup looks like this:
i then grabbed the closest thing i could, a pug doll, threw it in there and took one picture with my thrifty fifty lens. the outcome is shown below. was taken at 1/5th @ f/20, iso 100. please critique it so i can understand if i am on the right path. I will probably build a little bit better setup soon, but it will pretty much go on the same idea as this one. any critique will help (positioning the item, lighting direction, exposure, etc.). Thanks!
Okay, so here are 2 test shots i did of some glass work my brother sent me. hopefully ill be able to do some more for him and save him some money.

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http://www.justinunderwater.com/
-5Dmk2, Sig 15mm f/2.8, 17-40 f/4L, Tam 28-75 f/2.8, 50 f/1.8, 100 f/2.8, 70-200L f/2.8 IS, 1.4x Tele, and 580EX
-Ikelite underwater housing for 5Dmk2 w/ dual Ikelite DS-125 Strobes