The short form of my real name is Lena, the only one I use, and L∃N∀ is my signature art seal. ∃∀- are math signs, which mean "exists" and "for all" .

Unfortunately, there was no Unicode character for "for all" with a line above it for logical "not" and the meaning changed from "exist not for all" to almost the opposite, which I found amusing - hope you do too :)

Explanation of art signature by Lena Nechet - "exists for all."
signature, seal, watermark