OH JEEZ THAT'S CUTE! What brew would such a guinea witch conjure up I wonder? One thing I think could push this photo just a touch closer to perfection would be a little work on getting the heart integrated a little more. As it sits right now it draws the eye too much being so shape and bright. I might try to soften the edges of the heart a little and maybe bring down the saturation just a touch. Or maybe, assuming this was put together in Photoshop and the heart is on its own layer, maybe just taking the opacity on that layer down just a little bit. Just a small suggestion – it might let the eye rest a little more on the little guinea witch's cute little face a bit more.