For the first two images it was strictly a Photoshop image built in layers with a "plastic wrap" applied over a gaussian noise field. The last one I built the scene within Bryce. The IMI Desert Eagle is a model from DAZ and the Book, Calipers and Magnifier were models from Runtime DNA. The eye, pyramid, tiled floor and sky were all done with procedural textures inside of Bryce. The final image was rendered with Bryce.
The software I use in my doodles includes Photoshop 6.0, Bryce 5.5, Poser 5, DAZ Studio, Blender, Wings 3D and a few organic grass creation tools I found on the internet. I went out and bought the software a little bit at a time and learned as I went along. I use Solidworks, a 3D package in the Catia family, professionally to design heavy equipment used in material handling so I was comfortable with 3D design just not from an artistic standpoint. The stuff I have to do for a living has to line up dimensionally to thousandths of an inch and it is quite a mental departure to deal with abstract 3D like Blender and Wings. I keep the software on my workstation at my office so when I feel undermotivated I can do something creative to take my mind off of bolts, sheet metal and the like
Here is another from my collection of wasted time or time well wasted, however you want to look at it. I need to get around to making myself a fancy dancy avatar to use in here but I haven't had any ideas yet