Is it necessary to learn art mathematics well?
I don't think it matters! The so-called geometry is only a small part of mathematics, and good geometry does not necessarily mean good mathematics. And what you said about spatial thinking, don't put octupole together. To learn art, you must first love it (not force yourself to like it); Secondly, what is your sense of color and what is your so-called sense of space (that is, the so-called talent). To sum up: if you do one thing with your heart, you can definitely do it well. Remember not to generalize!