Ah thank you so much! He's beautiful!
Is it alright if I put him on my profile with credit?

Yup, go ahead! (:

OC: OC
Pose & either headshot or full body: Headshot, please, maybe just smiling, one ear up one down (hope that's okay)
Coloring?(Nothing, simple or detailed): simple
(If chosen)Background: Just a solid color, maybe pale green like the eyes
Do you want colored line art? If so, what kind?(I.e. the line art all one color, blue. Or it being based on what color is there. One area having pink will be colored darker pink. & same goes for any other color there is): just black is good
If you've chosen either shape/color or no background, do you want it to be a transparent PNG? Or no?: Since I don't know what that means lets go with no? xD
Reference Pic(I.e the pic of your avi &/or sylesti &/or oc): https://imgur.com/a/fdlrxkB
Do you want me to update you(I.e sketching phase.)? & if so, how do you want me to inform you, PM or Ping?: Yes please! A PM would be nice, if that okay!
Specifics/things that I should know?: Not sure if this is important, but Fox isn't specifically a boy or a girl, and can be drawn as either one (I typically make him a boy) and so you can just do whichever you prefer!
Paying by?(Dias or Gold): Gold. I think the total is 6,100? Please correct me if I'm wrong!

Ok, & the total is 6,500g.
About the transparent PNG thing, its a bit hard to explain, for me anyways. So heres a video. The first image is not a transparent PNG, & the second one is.
https://i.imgur.com/hLIeRGG.mp4

Ah okay sorry for missing an entire 400 gold xD
And okay, yeah I see how that works now, thank you! I think I'd like it not transparent, if that's okay

Yea, its fine lol.
& got it.

Okay thank you!

Im back open!
Although, I do feel a sickness coming on, but I think Ill be fine ^-^;
& Katia, since you didnt say whether or not you wanted to be pinged, Im pinging you too, just in case lol.

Sylestis: Could you maybe draw my pair Kelparis, Centipede and Caterpillar?
Pose: Fullbody would be cool, but if that's too much for you, you can stick to a headshot^^
As for the pose, they're married(I mean, you can't technically marry your Sylestis on this game, but...), so maybe something sweet, like them cuddling or something?
Coloring: detailed, please^^
Background: you can add a simple background (like a shape or a gradient) if you want. If not, I'm fine with nothing.
Colored Line Art: All your Examples have colored line art, and I think you do that very well, so do whatever you think looks best when you get to that stage.
Transparent PNG?: Preferably.
Reference Pic:
Here's Centipede:

And here's Caterpillar:

Updates: Nah, I like a surprise. Plus, less work for you so... :D
Specifics: Umm... If you don't wanna do two Sylestis in one piece, I understand^^ Lemmie know.
I wasn't sure if I could commission it or not, haha~
Thought I'd try.
Also, your art is very beautiful and soft.
Paying By: I read that you prefer diamonds. I've got 600 of 'em atm. Is that enough?
If not, I'll split and pay the rest in gold.

Yeah, all sounds good. I can do two sylesties in one, it just takes more time lol(doubled, basically).
& Im pretty sure that 600 is way more than enough, paying wise lol. It should be 40,000g, which would be 16 dias + 1,600g.