Can anyone help me with this poem?

It's not bad, but I think just tweaking the imagery in spaces could make it more clear. I wouldn't want to add length, because I like the length, but some phrases aren't really working for me, like "you've tarnished every part of my body." The whole poem has this very imagery-heavy, metaphysical vibe and the outright statement seems out-of-place. And while the "from this angle beneath you," for me, was necessary to figure out your message, it seemed a little forced to me. Of course, it could just be that ending a sentence with a preposition seems awkward in any context. I would try to incorporate the angle of the narrator into the entire poem more, kind of sprinkle it throughout. Then I think you'll get the effect you're after. Best of luck!