I don't have time to draw a picture of myself here, so I'll just describe using my words

Name: Nethered, or Nari, if it's easier to say

Age: No clue at this point

Height: 5' 5", or 165 cm

Gender: Nonbinary

Clothes: You can normally find me in a black cloak with fire patterns and a hood, white pants and shirt, red gloves, and black boots. All of these are fireproof, of course

Mask: White, covers mouth and nose, bandanna-like

Other things appearance-wise: Hair is salt and pepper and pulled into a long braid, skin is a rich brown, eyes seem to shift between black, brown, and what looks like gold

Fun fact I, because Poultry Man dared us to: I was born in the Overworld long-ish ago, and was chosen to become the next Watcher of the Nether (not that kind of Watcher)

Fun fact II: I blister when exposed to water for too long

Fun fact III: Phantoms aren't fireproof. Boiling, what were you thinking when you phantomfied me