Underboob Tattoo Ideas

Br
Thinking of my next tattoo being an underboob tattoo and I'm in need of ideas. I was thinking maybe a black and red dragon? I plan on having a quote on both of my ribs, so it would have to be strictly under my boobs. I'm looking for other ideas too though and I was curious if that was even a good tattoo idea in the first place.
 
I have three already (antipossession on my right side, shark on my right hip, and a penguin on my left shoulder blade) so it's not that I am uncertain or want to have a popular tattoo, it's just the uncertainty of what to put there. I was looking at some that people have and didn't see any in particular I liked yet. I know that's where I want it, I'm just not sure of the design...help? :(
 
My list of tattoos I want: 1. Rainbow heart on my left hip 2. "I was so alone, and I owe you so much" separated in half so one portion is on each side of my ribs 3. Black rose with a ribbon beneath it and my dad's name and birth and death dates