1, I like the idea, but it is oof quite a bit. The white balance is warm, and I would adjust it a smidge (technical term).
2 has creative composition, but it is underexposed and too shallow DOF. I don't actually see what is in focus on that one. I would adjust the white balance on this one as well.
3 doesn't seem to be in focus at all, wb is still off and doesn't have a clear subject. It looks like shutter speed was rather low.
4 has creative composition, but doesn't have a clear subject. I am puzzled by this one.
A few things to keep an eye on, but keep shooting. It's the best way to get practice!