A 3D reactor

Deciding to try and get a head on the game of 3d Modelling, cause I would not like to get left in the dark, like what happened with flash. So after trying some animation with a biped below, I thought I would try out some tutorials on basic modeling. I used this tutorial: http://www.3dtotal.com/team/Tutorials_3/basic_modelling/basic_modelling_01.asp just to get an idea on some basic and simple techniques. Here is some of the renders I came up with: