I agree with StevenM, but since there is no more time left I decided to accept it conditionally. Please remove the accidental pixel of #7486A3 as soon as possible.
Your piece is marked as a submission for the weekly challenge, but it doesn't fit the palette parameters - there are 10 [9+transparency] colours instead of 9 [8+t] and two of the colours seem to be different from the mandatory palette. If you can upload a fixed version of this file, with a different filename so the server can distinguish it from the originally-submitted one, I'd be happy to approve it.
Cool bass tho the shape get's lost a little