Would a rib cage tattoo look too cluttered if I already have a lower back tattoo?

I have a lower back tattoo that extends just about completely across my lower back (a "tramp stamp" as everyone calls it). I really want to get a tattoo on my rib cage, but Im afraid it will look too cluttered on my body. The one on my rib cage wouldnt be too big Im not sure what I want yet though. What are your thoughts? Also do you have any ideas for what I could get on my rib cage?