I have no clue what I'm doing.

Howdy, I've recently got a Ender 3 v3 SE from a friend, and wanted to start 3d printing stuff for cosplay, however, all my 3D prints seem to look like Van gogh had his hand at printing them on the side that touches the supports, and the top side (second image) also looks rought, admittedly this is a very strangely shapped print but I'm not sure it should come out this poorly.

Any advice or insight onto how to fit this is hugely appreciated, thank you.

https://preview.redd.it/4asnm721a07f1.png?width=2250&format=png&auto=webp&s=639feef2343a382d892aa4114ec01c3170a71b55

https://preview.redd.it/43tml0c2a07f1.png?width=2250&format=png&auto=webp&s=4f510044ae42262fb4a2ca7121f21a2a0c8cef5c