Bad Guys Club 12–22

I didn't get to do Inktober but I followed the prompts of an artist on Instagram (Craig Gleeson) and here's the second batch!
Top to bottom, left to right:
12 - Ooze It
13 - Costume Kid
14 - Son of a Bitch
15 - Wild Man
16 - Solar Scum
17 - Batman
18 - Robin
19 - Prick
20 - Alley Cat
21 - Pest
22 - Sea Scum