UFONIAS

Not sure what to tell you. It looks professionally executed with just a small unpleasing discrepancy between main text color and graphic mark black but... the symbol/mark is too complex with a lot of small details and if you try to scale this to thumbnail size it doesn't work.
The whole composition is just too tall.
I feel you should rethink this and try to come up with a slightly different, simplified graphic mark.

I don't really know what this is. Perhaps it's my ignorance in music. I don't like the confusing parts on the very top. Also the colors could be better. Black and dark blue don't work together usually.