Edit: Fixed an error I just noticed. Forgot to recolor an outline on the top right sprite's wings.

A few years ago, my mate/boyfriend  c-prime asked me to make a sprite of Hope, his cybernetic Eevee. She's also his "little sister" as she was made by his mom, then later upgraded by him to be capable of reproduction. She has real Eevee pups, and her eggs came from several Eevee females. They weren't harmed as they were willing. This one was fun to do and a challenge as she's a wolf sized Eevee, so I did a custom sprite to make sure she looked like she was at the right size. When I do custom sprites, I edit them heavily, turning one Pokémon into another one, keeping the shape of the base Pokémon so it's like a repose. I don't usually do head swaps for these unless I need to, like reposing another Pokémon in a different position, like a bipedal one to all fours for example. I did one of those and will put it up when I finish updating it.

Sprites used here are Mightyena and Eevee, with Mightyena being used as the base for the sprites due to it being at the right size. Colors are custom, made to fit the description. The wings came from Pidgeotto, for the top right, and Swellow, for the bottom right. I did four different poses, two showing wings, and two without, as she has wings with solar panels on them to recharge her energy, being solar powered. I was given info about her when I made the sprites.

She has two male mates, and has had pups with both of them. One of them is one of my brothers, His name is Maneson, and he's a Manectric/Mewtwo hybrid taur. Might put his sprite up sometime after I rename the file type to a PNG. The other one is another cybernetic Eevee named Quicksilver. He's owned by both me and C-PRIME, as Quicksilver was made for me by him as a wedding gift. I'll put his sprite up sometime. It's basically a recolor of Hope's sprite. I think she might also have a female mate too. Might be Charlene.... probably. Can't really remember well.

Anyways, one of my custom sprites here, an example of how I do them. If you know your Pokémon well, you can tell that this used to be a Mightyena sprite, but it's been remade as an Eevee. What I did was edit the feet and I changed the tail and ears, and also recolored. The Eevee sprite from Diamond/Pearl was used, and both frames of the Mightyena sprite were used. The wings were also recolored.

Done in MS Paint.

Hope ©  c-prime
Sprites © Me  sapphire_the_mewtwo
Eevee, Mightyena, Pidgeotto, Swellow, (Last two were mentioned) Pokémon © Nintendo, Game Freak