Unlike some people on here I will try to help 
As far as lineart, steelix is pretty good. His spikes do, however, need some work. Classic red's eyes also look strange.
You are showing alot of improvement so don't give up
As to some...please be nicer. Be like "Oh ____ needs work" Not "Oh that is poorly made"
I am suprised and glad that you worked on a custom, rather than an edit.
As far as lineart, steelix is pretty good. His spikes do, however, need some work. Classic red's eyes also look strange.
You are showing alot of improvement so don't give up
As to some...please be nicer. Be like "Oh ____ needs work" Not "Oh that is poorly made"
I am suprised and glad that you worked on a custom, rather than an edit.