Concept/reference art for Shudder, who has been skittering around my brain for about a year, but I haven't managed to draw him until now. He is one of my featured characters for ArtFight 2023: https://artfight.net/~clopan

Shudder is a freewheeling, mischievous counterculture tickle monster from the 1970's. His best friend is Bump, a sullen, grungy "Boogeyman" from the 1990's: https://www.furaffinity.net/view/52728795/
His rival is Lullaby, a sweet, fun-loving "Sandman" from the 1980's: https://www.furaffinity.net/view/43139842/
Lullaby, Bump, Shudder, and other dream creatures of their ilk live partially outside of time, with their appearances, tastes, and sensibilities frozen in the time period in which they reached young adulthood.

-Shudder is heavily inspired by, but not meant to literally be, the Mahaha from Inuit folklore: http://www.inuitmyths.com/mahaha.htm
-His pants/legs in this picture are heavily referenced from a piece by Machroshka, who draws zany tickle monsters way better than I do: https://www.furaffinity.net/view/42424335/
-Background from freepik.com