Just a collection of reference pics for a future minor character – the son of a genetically uplifted horse, who commissioned a bunch of magogeneticists to give her foal a horn. She wanted him to be special. That's also why she named him Moonflower Etheriel Bliss. *facepawheaddesk* Mares.
These following are all pics of one cremello chap and right for colour, but I don't know that he'd the right breed/build. (I know the horses in this setting are roughly Percheron-derived, but I haven't the expertise to recognise one if it came up and ate a stick at me.)
Here's a pic that I particularly like (source unknown; the url on the picture is sadly domainsquatted now, so I can't find out any info about it), although this might be overdoing the feathers. You know, just a tad.
And finally, amusement courtesy of Second Life, because whatever daft idea you come up with, someone is bound to have done it before in Poser…