It's fairly short, because really the only thing I do is... not use lineart xD But yeah, hope this tutorial is helpful in some way o:
Everything shown here was done in Photoshop.
Fun fact: I actually can't draw lineart on computers for beans. Like I actually can't do it. I draw lineless because I like how it looks, and because lineart is just too hard for me :'D
Simple shading tutorial, and yoshi drawing:
This technique is used in almost all of my "fancier" drawings/paintings.... some that I am asked about most often:
Yep, same technique for fleshing out my images as used in this tutorial