Very excellent photos! You have "caught" so many awesome pet "looks" with your camera!
I have found myself taking the most photos of our cat...and I think it's because she seems to always be "posing" & playful(as opposed to the dogs-usually licking-something-leg,couch,carpet,etc). Anyway, after seeing your pix, I need to keep working at my "snaps"....I would love to have the nice set of images that you have just displayed!
Have fun! Your pets will become hams for the camera. My best suggestion with digital photography is to use natural light and avoid the flash. Dusk is an especially great time for photos mainly because the shadow play is excellent. Good luck!