There's no Halloween without black cats!

It's a masterpiece of a Halloween theme :
the colors are well chosen : purple (symbol of mourning) and orange color antagonist whose round here reminds pumpkins. Without forgetting the blue night, essential for any work representing Halloween.
For the decoration, a simple skinny tree is enough to give a disturbing effect, no need to override.
The focus is on the black cat, mythical animal representing Halloween. His position, lower right, gives an interesting dynamic to the whole. Like a cat that appears abruptly in our field of vision. Its look is both disturbing and beautiful, her eyes says a lot of curiosity.
To conclude, I find this representation very original, both in its theme and composition. And as its title says: " There's no Halloween without black cats" even if black cats are usually nice and gentle, and especially not a source of misery !