The trick with the dogs is to have great photos.
My sister shows dogs so I lob along to a show and there are umpteen people who are happy to show off their potential 'Best in Show' winner. The dogs sit or stand like a statue - fabulous for what I want - my own will stand well on a lead so I enlist a 2nd person to assist getting them to behave, and I click away.
If you have a feel for the animal and an understanding of their conformation it really helps to get things looking right. I worked as a veterinary nurse many years ago and also grew up looking at the conformation of dogs and horses.
As a Registered Nurse (working for too many years in operating theatres) I am also familiar with the human body and its underlying structures.
In order to feel comfortable being able to look at your animal picture and say "Ooh that makes it look down at pastern" you need to watch animals every chance you get and read a few books.
If you seem to know what you are on about you will get more commisions too.
Don't let me bamboozle you though - and don't wait till you've read the books - just do it and corect any problems as you go.