Please, if I'm making your avatar, feel free to tell me what you'd like to change, or if it's better to make anew, being specific in what turned out good or not.
Ended up with this shortening - Effytar - looks short enough and sounds as if it was formed from "effete", and that word, strangely enough, is firmly associated in my mind with Professor Moriarty) All the more fitting, moreover so since I like so much to use fractals and other excuses not to draw in avatars)
ussusimiel, the first variant for your avatar. An image more or less closer to how I imagine ussusimiels, a fractal image of Fertile Sun plants on the background. Would you like some text - your name, "Fertile Sun", both?

Iolanthe, your avatar with your name on it. What do you think about the font, size and color? This variant i based on the current colors and the font from your another image.

Did try to do something with the "toy") image, maybe too vague.
