Beginner seeking guidance

[Decroded]

Yeah but its Tetsuo! And who didn't want to see that right??
I look at the hair in Wolf's edit and it really feels like it is alive and moving to my tired eyes

Your hair is OK but you should keep experimenting with hairstyles.
I really need to go to bed but just quickly I thought the your hair should feel a little "fuller" by use of more solid clusters...


Ssooo tempted to edit in the mutant arm but its way too late and off topic 

[Facet]

Yeah, I don't think the original is that far off a nice toony look, very quick doodle knocking down materials to 2 shade only (+ select highlights), for a simple cel look, gave him forehead, lengthened arms a tad, and just livened up bits to be more contrasted/eye-catching. I just realised he's somehow turned into Goofy's son though .

[Decroded]

That fixed a few things that were bugging me.
General lack of anything interesting to look at still an issue.

Added a touch of detailing:

Probably too much contrast on his skin, its hard to judge on this work monitor.

[BlackTar in a Jar]

Ok so I changed the character to Tetsuo following Decroded and some other asshole's advice, and tried to impliment much of what I've learned here.
I also changed the palette using some of Wolf's edit. I still don't know about the face, but I'd like to try and keep the general pose, just for a challenge and so it at least feels like there's a resemblance to the original.



Thank you Facet and Decroded again for more advice

EDIT: Fixed a few things