Did you use a 3d creating program or what to do this? Cause I've been playing a game called TES: 4 Oblivion and I'm trying to create both Zoids models and hopefully once I get good enough, the creatures from Borderlands. n_n
I use a Half-Life 2 mod called Garrys Mod to do stuff like this. People usually port models and props from other games (like clap trap here) to use in pictures. Then I ues Photo shop to fix up the pictures, add effects and stuff like that.