Paul - I have to apologise as I had viewed the thread earlier but got distracted and hadn't posted a reply. So here it is now, beter late then never
#1 I like, Zebra is in a natural pose doing it's thing
#2 This shot doesn't work for me, the bright background and the slightly washed out face, stops this from being a better shot (I'd say the shooting conditions were very trying in this case).
#3 A Great little capture, while I like the next lion shot more, this one blurs the line between domesticated house cats and big cats
#4 This one is gorgeous and one of my favourites, love the DOF and the .. "I am mistress of all I survey" type feel. My only nit pick would be to maybe try cloning out the bright rock / ojbect in the left foreground.. (or just dulling it down a little).
#5 and #6 Capture the character of the respective animals well and are both good quality shots