Yeah thats true which is because Im not an artist.
I'd dispose of that kind of thinking. If you're working on art, interacting with an art community to gain ideas and receive critique and reviewing art theory to improve your technique, you are an artist.
Ill check that out, but the head was meant to be intentionally bigger since its a side top view but I knew I didn't convey that well enough.
The angle is generally referred to as 3/4 oblique, or just 3/4 view. Making the head bigger/body smaller is a perspective method known as foreshortening, but it doesn't really apply to oblique projections because lines remain parallel to the axes regardless of distance from the viewer.
Typically sprites have larger heads because there's not much canvas space to convey facial expressions at such low resolutions, so the artists alter the proportions to maximise the space they have to work with.
Bit of an edit:
Colour unification, clarity of face and hair, more defined shading. Maybe try taking a look at Chrono Trigger sprites for ideas.