This was primarily meant to act as the seventh drawing of the seventh day, but it didn't turn out as I had imagined due to me being busy.
Though, both Day 8 and Day 9 I will try and complete by today. Then Day 10, I may begin focusing on more sketches as I study art a bit more, and try and see with other artists about the directions they took.

But for a rundown of what this exactly is;

I consider this to be a cybernetic augmentation of his left-arm. The main detail consisting of three viles connected on the robotic arm possess modified printer ink, or better known as portal fluid.
Inspired by Rick n’ Morty, this arm is able to shoot and create portals that ultimately lead to the universes of different artists. Acting as a sort of explanation for why every artist has a unique style of their own, yet also connecting them together through separate realities.
Passing through one of these portals alternates the stylization of your character, to appropriately match the theme or style of the artist.

The reason behind this idea is because I always wanted lore relating around artwork, due to my character being an African Wild Dog (Painted Canine) as well as my aspirations to be an artist. But for each art piece I commission from here on, I also want them all to tie in together in some unique way, which could be done through this.
I don’t imagine this to be something I’d make a full storyline out of unless I start doing comics, which is a future goal of mine. But if there was ever an antagonist / conflict, I’d like to do something such as a type of ‘corruption’ that progressively destroys universes around itself as it spreads throughout the multiverse of artists and their worlds.