My advice would be to cluster art that speaks to each other - whether it's subject, colors, or style. For example, when I look at your pictures, the giraffe and the sheep both appear to be photos, so to me, they work together. But the horse is a painting, and I tend to think that photos look best next to photos and paintings look best near paintings. Here's an animal grouping in my home:

@cawaps - I LOVE that idea! Who doesn't need a bit of levity while sitting on the toilet?

@cawaps , actually that was my thought!😉

Sometimes you can make a very big statement with animal art.

The horse is subtle enough, so can go pretty much anywhere. I adore animals, but the giraffe and the sheep are a little much (unless they are going in a children's room). I love the third elephant pic.

If you want to showcase your animals, you need to paint the walls a color which all have in common:

Dang, I thought this posting was going to be about real sheep. But since it's about animal art, I'm guessing that your friends and family are already are aware of your love of animals so if you want to put them where they will make your smile, why not do it then. But I agree with Judy G about the wall color to pull them all together. I'll baaaa on my way now....

Christopher it is obvious that you haven't been on Houzz before as if you had you'd know that this is a frequent design question. After all, this is a Design Forum...

Thank you, Ted, and apparently he hasn't. Looks like that was his first comment.

Welcome, Christopher.

Aeglisson- now that you are back here a moment, what did you decide to do with the sheep?

They're in my guest bath...I smile every time I see them...so do my guests. What's better than a smile! I love whimsy.