One of my favorite blog posts on the subject - this is geared toward model horses but in essence it's the same for any animal. http://horseguru.blogspot.com/2013/12/photographing-your-model-made-simple.html
Whenever the question of taking photos comes up I have to stress how awesome photo cubes are. And you don't even need to buy a super expensive one - if I want something but it's too expensive, I'm the type of person that will make one myself. So I made a photo cube, which you can read about on my blog here: http://mistystarstudios.blogspot.com/2014/04/photo-light-cube-and-my-weird-cat.html
Photo cubes really help reduce glare (not as much as an issue on the major brand models, but definitely a huge issue on model horses, especially glossies.
As Kosta mentioned, you can use an photo editing program to adjust colors, crop the photo, add text - whatever you want. I use GIMP which is basically the same thing as Photoshop, I find it easier to use than Photoshop and GIMP is free.
A few other tips while I'm at it:
~Crop closely to your model. Don't leave a lot of space around it.
~Use the Rule of Thirds to lay out your photo
~Choose an appropriate background color for your model. Use neutral colors, such as black, white, blue, or green. Another thing to keep in mind is to use simple backgrounds - nothing with a wild floral print or anything. Small prints that aren't distracting are fine, but try to stick with solid colors if you can. You're taking a photo of the model, not the background. Same goes with outdoor photos - try to keep buildings out of a shot that's supposed to look like the desert, for example. If need be you can always edit these things out in a photo editing program.
~Allow your camera to focus in on the model. Don't just point and shoot.
~If you have trouble with your hands shaking when you hold the camera, invest in a tripod or just put the camera on a stack of books. Even the slightest movement will give you a blurry image.
Hope that helps and doesn't cause more confusion