Daw _ thankies
good luck to you too
OKMER weee yes skinny little horse legs and a big horse head ha ha. I think I might do a quicky color on a sea serpent type thingy see how it comes out. Yes , you have me thinking more 
Sabrina - Thank you so much. I might have to post the rat coloring part and see how he looks. That is not done yet though J
Musi A pooka is basically a spirit or faery that can take different forms. In some stories they take animal form, a dark horse is one of the forms.
I have pasted a bit of information , though you might not have time to wade through all of it .
The Phooka (old Irish), (also Pooka, Puka, Phouka, Púka, Pwca in Welsh, Bucca in Cornish, pouque in Dgernesiais, also Glashtyn, Gruagach) is a creature of Celtic origin, notably in Ireland and Wales. It is one of the myriad of faery folk, and, like many faery folk, is both respected and feared by those who believe in it.
Description
According to legend, the phooka is an adroit shape changer, capable of assuming a variety of terrifying forms. It may appear as a horse, rabbit, goat, goblin, or dog. No matter what form the phooka takes, its fur is almost always dark. (its name is a cognate of the early Irish poc, a male goat, but it most commonly takes the form of a sleek black horse with a flowing mane and glowing yellow eyes.
Encountering a Phooka
If a human is enticed onto a phookas back it has been known to give them a wild ride. But unlike a kelpie, which will take its rider and dive into the nearest river or lake to drown and devour him, the phooka will do the unfortunate rider no real harm. The Púca has the power of human speech, and has been known to give advice and lead people away from danger. Though the phooka enjoys confusing and often terrifying humans, it is considered to be benevolent.
Agricultural Traditions
Certain agricultural traditions surround the Púca. It is a creature associated with Samhain, the third Pagan (Celtic, Wiccan) Harvest Festival, when the last of the crops is brought in. Anything remaining in the fields is considered puka, or fairy-blasted, and hence inedible. In some locales, reapers leave a small share of the crop, the púcas share, to placate the hungry creature. Nonetheless, November Day is the Púcas day, and the one day of the year when it can be expected to behave civilly.