2. tumblr
3. Tony Stark
4. Spider-Maus and MausPool
5. Bioterrorism Security Assessment Alliance (Resident Evil)
6. Khan
8. Agent Coulson
10. The Assorted Walking Dead
11. Tetris
12. Mystique and Emma Frost
13. The Doctor and his Dalek
14. AHHHHHHHHHHHH MINI IRON MAN WITH COULSON AND WHEDON
15. Big Sister and Splicer (Bioshock)
16. Han Solo with steampunk Boba Fett
17. Chell and GLaDOS (Portal)
18. Captain (Doge) Marvel
19. Steampunk Explorer
Bonus! This lovely explorer retrofit her electric wheelchair for extra steampunkability.