don't be put off an idea ur into just because it's percieved as 'common' by people...at the end of the day the tattoo is for u. just make sure that whatever u get it is done very well as there isn't anything worse than a very common idea inked badly IMHO
Get some more color like you said, and then see how it looks. You may be happy with it as is once its nice and clean and sharp. Flowers are common, but still cooler than no tats at all Ink_Girl85, you failure.