Yinglets were made by this dude:  Valsalia

I like to imagine him with the magic power from the gold in his chest, but I can easily just not have him have magic lol
Image made from a friend (unsure if they want to be shared here)

WormTongue:
- he is a 4ft tall yinglit with visible veins imbued with gold all over his body like an infection. his general body shape is a lot more "stocky/thicker" than the average yinglit especially in the limbs. unlike others he has four arms & more claw like fingers
- his lower jaw is split & has two long & spiked prehensile tongues. his "gold veins" visibly lead to his heart like wires sticking out of dirt, what looks like a piece of gold sticking out, and if it was forcibly lodged in his chest. he has deep bags under his eyes with the left one looking like it's infected and the bulging veins are golden
- his fur is more darker sienna in color with tints of Antarctic Blue. the tail/hair is a lot more puffy & long with a brighter sienna color mixed with a lot more bright blue. the non "infected" eye has a emerald green pupil, while the left one has a way deeper shade mixed with gold
- he tends to wear some form of robe to hide his body & it's usually made up of rags. the primary weapon he Wealds is a small pike/spear but has has secondary assassin Creed style blades on his wrists. where in areas unfamiliar he normally puts on a half mask that focuses on the left eye for intimidation