I didn't think you'd particularly care about this, but I thought it was great, and you are my catch-all.
AVENGERS Character Logo Art
The Amazing Spiderman
Spiderman art | spiderman_vs__venom___colored_by_ladyorange-d5b9rgc.jpg
Cap & Shield - Daniel Murray
The Art Of Animation, Imaginism ✤ || CHARACTER DESIGN REFERENCES | キャラクターデザイン • Find more at https://www.facebook.com/CharacterDesignReferences
Just some superheroes and villains
Sunflowers Large Watercolor Painting in Yellow, Green and Blue