I didn't know that was a thing, but as a trans person, I am happy it is. I usually headcanon Tails as nb, but I read one fic once that had Tails as trans femme, and that concept has not left my brain since. So occasionally, I doodle trans femme Tails. I think it would be an interesting one-shot to write as an exercise for myself.
(And Sonic in the back! I love adding hidden details to a painting. Also I did not realise Tails had the trans colours on their clothes until now. That was completely unintentional. I just like that colour palette for clothes)
Also, the tablet looks normal as hell because I remembered Tails had a tablet, but I couldn't find a reference for it until way later, when I saw an old article with promotional art with Tails on it from Sonic Colours. I now know to look up that game for reference, but it was too late.
I made the illustration irl on the train to relax and finished it at home. I did the background on my drawing tablet today because I wanted to paint. The Galaxy print leggings were a colouring mistake I turned around. Initially, they would be just black leggings, but I'm glad I made the mistake because those Galaxy print leggings came out so well!