For those who have a tattoo sleeve?

So far I have very random tattoos going on, I have two red erflies on my fore arm they look like they are "melting/bleeding" down my arm and on the other side I have jack skellington (ha) anyways I want a sleeve in the end I just dont know if i should stick with this morbid theme I got going on, or if it is a big deal to just have alot of random tattoos all ove rmy arm?