Newbie - Horse photography critique please

Hi everyone,

Some of you know I got a Canon S2 IS - and I love it! I've been toying with it some, and this is one of my first few times to use this camera for horse photo shooting. So, here's some pics I took today. I had it in the Tv setting most of the time with the ISO at about 50-100 (depending). I used the Macro setting on the last two (my favorites). You'll probably see alot of these photos were against the sunlight.. I liked how they turned out for a first time, and I always love horses posed against sunlight, so I'd appreciate further tips on how to achieve that "look" better... Feel free to critique my other photos too, or make suggestions on what settings would be more appropriate. But please be gentle, I'm new to this!

IMAGE LINK: http://photobucket.com​/

IMAGE LINK: http://photobucket.com​/

IMAGE LINK: http://photobucket.com​/

IMAGE LINK: http://photobucket.com​/

IMAGE LINK: http://photobucket.com​/

IMAGE LINK: http://photobucket.com​/

IMAGE LINK: http://photobucket.com​/

IMAGE LINK: http://photobucket.com​/

Yes, you are doing well.. I would suggest using a polarizer on your lens.. Also, the exposure is a bit hot.. You have to be careful using a hot exposure when dealing with light colors or muted colors..