Yeah, this commission I got is pretty special.
It's actually based on a roleplay I did a long time ago.

It was about a Zangoose (Aladar) who was traveling dimensions and eventually landed in this world with a weak demon. He befriended that demon, but as his dimension traveling (more like dimension chasing after Incineroar) returned, he left, then within a day, returned to that same dimension with said demon, but ten years had passed, and the demon's power had returned and had driven him mad.

This scene was a bit of a standoff between them. Asmodeus (The demon) was off to eliminate the last remaining gods of light in that world, but Aladar was off to stop him. He tried to explain that worlds needed a balance of Light and Darkness, and what he was doing was foolish, but to no avail.

Little fact; the sky used to be covered in dark clouds, but ironically Aladar had used a dark spell to get rid of quite a few of them (Negative Gate).

This particular demon isn't the exact character, but my representation of him. (He does look similar though)

Wish I could tell the whole story, but that would take forever to write what I remember.
Sadly the person I rp'd with deleted the account he was using, so the dm was gone too. Shame because I used to re-read it all the time because of how detailed and awesome our roleplay was.

This was an amazing commission I got from Darinscraps from Twitter: https://twitter.com/DarinScraps

Who knows, I might do more with this demon sometime.
He is quite the hunk, and his character was kinda based off Demise from Legend of Zelda, Skyward Sword.