flat
If you want honesty then it is horrible. Sorry.
Make the lines thinner, the shading is bad so work some more on that. Make the hair look more like hair.
One side of the hair is faded whilst the other isnt, the shading on the hat is wrong, on one side of those dangling things the shadow is towards the light, having the line thick and not blending them in really irks me, imo I think the mouth should be centered and not to the side, so it doesn't look like he's facing a certain direction, same with the nose.
Though I commend you for trying newer things, just work on s'more stuff.