I tried to do sphere shading like what youd find in more modern anime
also note how i actually drew legs for doraezach in this pic
okay.
if you're trying to do shading, please try and establish some form of light source first off
i colorcoded the different light directions i found
there's like 4. that ain't good.
there should only be one main light source
if you have trouble w/ light sources i would suggest looking up a tutorial/visual to get better at it
also
the difference is absolutely jarring when you make a picture almost solely out of line/circle tool as opposed to just drawing it manually