I found this picture to be good. I admit I don't know if it's a reference to something. It kind of reminds me of "One Piece". I guess it's just because of the logo. I think you may have used just a bit too much dark in this. The parrot's probably what makes me think of pirates.
That or the eye patch. I like how they all different sizes and designs. It shows great contrast. Yeah, it's definitely pirate themed. I don't even know what I was thinking when I thought it wasn't.