Personally I think its abit much.
....but Im a liar if I say I havent seen a character/creature that made it work.

I mostly see it with Feral Dragon characters.

I do not think it is too much.

there's no cock like horse cock

but a knot is too much shock

I'm somewhere in the middle. I find it an odd bit of peen-type mixing, since you are mixing animal types in ways that seem different strategy-wise when using your peen. However, I wouldn't call it not ok, especially if it's what you are into.

Not at all! I think it's a good combination :)

If you ain't a horse with a thing like one It's already too much.