My two cents - have a great consult with your artist on what is most important to you (the vibe, the style, which elements, etc.). I bet that together you can come up with something awesome.
I'm with @Dan and @oboogie. Do whatever you want! I'm all over the place, too. I try to find little things to help bring everything together but in reality, no one ever notices it but me. Go for it!
I'm an old punk/metalhead, now more into the rockabilly scene so can you guess the one directly music related tattoo I have? Well, Marina and the Diamonds wouldn't ya know. :D
Tattoo by Marina Inoue: