Very cool sculpt, and thank you for the videos! I tried downloading the PDF but it didn't work for me, downloaded at 22kb/s before seeming to time out and 'finish' the download before it had actually finished downloading. I'll try again later and maybe with a different browser (Firefox atm).
Awesome, really clean ...
one sugestion if I may ... the gun might need a bit more work, the scope, barrel look too premature.
Other than that, the artwork is simply outstanding, I love the fact that it looks like he,s actually wearing a wetsuit. Also you should get some Texture or polypaint that really would knock it out of the park !!!