ps. I hope a mix tape is not viewed as masculine though
Not the tape itself as such, but it's presentation.
At the moment it's fairly gender neutral. It looks like what a male thought might work if aimed at stroppy female gothy teens. Female psychology tends to be more receptive to some kind of emotive content they can empathise with, and while the scribbles suggest angst, I would've gone with a design which included more human elements.
Obviously the tape has some signifcant importance, so i'm not suggesting you drop it and go start again, it's just an observation from my experience of how those around me react to the marketing we see.
They'll jump on anything with a cute/cool/fucked-up character that they can identify with/relate too. Objects just on thier own just don't seem to trigger anything in them, unless that object has some symbolic or realistic link to how it makes them feel. An unknown/blank tape is just a tool (so it can be very masculine), and so I wouldn't be surprised for instance that if a distro were to pick up your film, the first thing they do is put a melancholic photo of a sad or thoughtful looking female on the front.
Possbily kicking leaves or snow...
Or maybe sitting on some steps...
Or maybe an overhead shot of her laying on her bed, headphones held off to the side in one of her hands...
Gah, you get the idea anyway.
Edit: Nearly forgot the thing that drew me to comment here - What I see in your art is a song without a girl, and not a girl without a song....