Could be this one isn't going to fade. I am going to try to get a pic update this week, a bunch in the tank have faded this past week too. I think it might be a female too, looks like she has a tube.
I bought a parrot exactly like that once at petsmart. it took forever to fade but it got pretty big before it faded. i thought has was never going to fade. had same mouth as yours too. mine did fade when he was about 3-4". to orange. not redish orange but orange lol
This one is about 4 inches if you include the tail. I hope it will fade, unfortunently I think it's starting to look more like a male as well. Just have to wait and see.