I'm not good at coming up with pet pages, but I do like to see a nice display of pets in a sensible order. I've tended to pair my pets up based on themes, colors, ect. The only problem is that sometimes a pet is facing the wrong direction. Could there be any way to flip the image of the pet, so it faces the other direction?

Just put the image into an image editor (paint, gimp ect), flip it, upload it and use code to set it up. That's what I did

That's fair enough, thanks both for answer and suggestion!