Masjid in the woods

I found this old painting when I tried to organize my files. It's not quite finished, then I tried to make some touches, improve it a lil bit, playing with some colors, I'm also doing some color research.
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please tell me what you think!
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Oh, this is not a vector, it's a bitmap, it's obvious, the edge looks jaggy.
I've done it on Krita.
I wish Krita would have an auto shape/smooth like procreate does. It'll be great!