I heard this was a place I could post some of my work so if you're interested, I've posted a link to one of my modern art pieces. I did this thing in Blender 3D, it's not professional work, but I'd like to hear some opinions if you would please.
http://img215.imageshack.us/img215/6672/nailsscrewspn9.jpg
Hey, that's pretty cool. To constructively criticise, it wouldn't hurt to bulk out the stem of the nails/screws, as they look a bit flat round one side (unless that was what you were going for), and the node in the foreground looks detached from the larger shape that it's part of, partially because the spike sticking out to the right mirrors the end of the nail.
Yeah, overall I do like it, I think the way the shapes interlock is really neat.