Jack-in-the-box

This one was made on a whim, I was painting non-stop until it was done. And it's kind of cliché but I really like it, maybe because it poured from within (don't know how to explain better).

Anyway, all ideas of improvement are appreciated. The background was intentionally made in different style, and I'm not sure if it turned out good.

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I've changed it a bit, adding sharpness.

Full View! Do you like it? Hate it? Is it too bright? Too saturated?