I won a lines-only headshot of Blue from BadestDiamond on MonsterDrool's Discord, and they said I could colour it, so I did. This is the coloured and shaded version.
I won free traditional sketch headshot I won from ClappinCow#0003 in MonsterDrool's Discord server. I then asked Cow if I could digitise and colour it, as long as I credited him. This is what I did with his sketch when he said he didn't mind.
Just the head of a base fill I did of Spooky on Ofishialy's F2U chibi canine/feline base from DeviantArt. The base is linked in their credits and their username is the same on ToyHouse, in case you want to check them out.