i really like it..
(if you have a look at my tatts you'll see i have alot of blue in mine, esp on my back)
i think if your not happy with it then maybe go over it? it ill def make the flowers stand out lots (which is a good thing!)
BUT like a pp posted.. will it just be then a grey/black blob that you arent happy with!

but just for the record i dont think it looks like any kind of "blob".. i think it looks amazing