Just finished cuphead and man, was it amazing. Totally rate it 10/10 and go play it! The creators put a lot of work into it ^^

So here's some doodles I made like a week ago

So those are all I have, but question:
How do everyone on tumblr makes them look so adorable??? Like:

Belongs to Flowerbunn on Tumblr

Belongs to dizzy-drawer on Tumblr

Belongs to actionkazimer on Tumblr

Belongs to laizy-boy on Tumblr

Like??? They're so cute?? And I don't know how to do this