A normal Painting defaults to a boring yellow one.

To get the other ones, here are the recipes (can be made without a certain shape).
(No idea if these image are working, not seeing the preview haha)
(alban)
Painting + Acacia Leaves
(Aztec)
Painting + Iron Nuggets
(Aztec2)
Painting + Quartz
(Bomb)
Painting + Sandstone
(kebab)
Painting + 3 of any food + stick (like a kebab)
(Plant)
Painting + Any sapling + Flower Pot
(courbet)
Painting + Brush
(pool)
Painting + water bucket
(Sea)
Painting + Sweet Berries
(creebet)
Painting + creeper head
(Sunset)
Painting + Blue Ice
(graham)
Painting + Pink Terracotta (idk man, i didn't have much to work with here.)
(wanderer)
Painting + black wool
(bust)
Painting + calcite
(match)


Painting + fire charge
(skull and roses)
Painting + skull + rose bush...
(stage)
painting + spider eye
(void)
Painting + Phantom Membrane
(wither)
painting + 4 soul sand + 3 wither skulls because why summon a wither when you can just make a painting of it👍
(fighters)
Painting + Moss block + moss carpet (to recreate the ground... the fighters were too hard.)
(donkey kong)
Painting + barrel because he throws those
(skeleton)
painting + skeleton skull + bone... + bone + bone + bone + bone + bone
(burning_skull)
painting+skull+flint and steel
(pigscene)
Painting+ porkchop(raw)
(pointer)
Painting + red mushroom (bc funny mario reference idk man...)