"Don't tell me what I can't do Jack."

[Lemon]

Hey, just decided to de-rustify myself and realized I've totally forgot everything I ever knew about anything. Took me forever to create a half pleasing outline of Mr John Locke, but now I have no idea where to go with the shading. I can't choose a nice palette, and I just wondered if anyone could help me with tips on how I should go about shading him.

[Ton]

Needs more twitching-on-the-ground-after-being-plowed-over-by-Desmond.

Also, looking good.

[Lemon]

ooooh I love Desmond me.

Does anyone have any good tutorials on shading?

[x0_000]

Your skin palette is a bit redundant and low on contrast. You should go for a darker "darkest shade"/ brighter "brightest" shade to increase the range. Can't help you as much for shading though, I'm bad at explaining this kind of stuff

[Cobalt Blue]

you're taking the colors right from the reference image. thats not going to work.