So "yay" my first submission to the site after being a lurking creeper (watcher) for so long. D:
I'm absolute shat at art and though it may not seem as such from this piece. I worked on this for far longer than I'd like to admit. (Far, far longer than I'd like to admit. OTL)

So this is a head shot of my sona with some minor details. Him and his older brother have been floating around in my head for years and I've just been to poor/nervous/lazy to get a proper ref sheet done up by someone or to try and do one my self! I finally decided fkit I'm gonna start to put him out there. So this is where I'll start. (I'm really hoping to get a ref sheet of him some time in the near future. I'm looking at you  Megaplex!) Anyway I'll add Some more details on my boy below.

Haku is a Charizard/Guilmon hybrid. (Currently in the charmeleon stage.)
His mother is a charizard and his father is a guilmon. (Mostly following pokemon breading rules.) Which is why he is mostly charmeleon in appearance with little bits of guilmon here and there. Like the digital markings and cheek spikes.
His main body color is white. While his irises, tail flame, digital markings, and soft flesh like the tongue, inside of the mouth, internal organs, and ...*cough*unmentionables*cough* are all purple.
Mostly all areas that are purple can be luminescent. Exceptions include internal organs and the inside of the mouth. (Tongue can glow.)
Digital markings, luminescence, and tail flame can be controlled to be visible, glowing, ignited respectfully with some exceptions.
Digital marking will appear unwillingly when under stress or while in an emotional state. markings will appear but fade out quickly when startled.
Luminescence occurs unwillingly while in extreme emotional states like joy, anger, excitement. (Luminescence will be dimmer during sadness/depression and brighter during happyness/rage.) Luminescence may blink on briefly when startled.
Tail flame can be controlled to be ignited or not. (Prefers it to be off.) Flame will ignite during times of extreme rage. (Which is really the only time he can't control it mainly because at that point he just DGAF.) Flame may also ignite when startled.
Oh and I almost forgot he can revert to previous evolution's. (Thanks digidad!)

Now I think that will about cover it. If I see anything else I missed I'll add it later.

Below is a bit of universe/lore junk to explain his color and stuff.

In my universe pokemon are of all kinds of colors. (Also humans no longer exist.) So something like a green or blue charmander isn't too farfetched. Though the parents colors usually (but not always) will determine the child's coloring. An example would be a charizard mom and blastoise dad will get a charmander that may be light orange or light blue or somewhere inbetween if the parents are the base color. the charmander may also inherit a trait from the father. like fluff on its tail as a charmander and more so as a charmeleon.