Not at all de Stijl—such is life when Purple Smart blocks you from directly asking for a Mondrian. Surprisingly decent drawing with a lovely oil pastel background. Her left legs are too long for proper perspective, though. PM me if you edit this to correct it.

# Prompt
safe, Princess Celestia, Celestia, feral, horse, hoers, pony, safe, modern art, de stijl
# Negative prompt
explicit, human, anthro, 3-D, 3d, sfm