I chose mine partly to go with my ID/Name and partly because the colors and theme kind of called to me when I saw it.
I think it was the Enneagram 4 in me that liked it... dark and mysterious, but pretty enough to be appreciated. Kind of the E4 theme I guess... waiting to be 'discovered' by someone. Wee bit out of place in its surroundings, surreal kind of environment... plus the 'rose', being in the dark, could be said to be 'oblivious' to what is around it, probably appealing to the I, and the 'fantasy' aspect appealed to the N.
I'd say it was probably an interesting choice that says more about me than I thought it did.