Cow-mice from Mars 2/2

Just because in my youth I was a compulsive maniac, remember I settled the breeds too: even if you aren’t interested in it, they are:
Throttle’s Martian horse…. Mustang like
Modo’s Martian horse …. Frisian or Shire horse like (for the people of my generation: do you remember the black, big, gorgeous horse in the film “lady hawk”?)
Vinnie’s Martian horse…. Anglo-Arabian horse like
Charley’s horse…. American Quarter Horse

And yes: Vinnie’s horse is flirting… can you see a resemblance with his owner?