The art of exaclty replicating a 2-dimensional image. This is the literal deifinition. In modern lingo, it means anything that is completely kick ass.

A Bloomer is someone with a bright outlook on life who is optimistic in nature. Bloomer's frolic in every opportunity to be happy and try to make the most out of life. The opposite of a Bloomer is a Doomer. The term Bloomer originated specifically as a counter to the Doomer on sites especially like 4Chan.