I like no 4... the rest don't really do anyhting for me because they do not seem as sharp, but 4 is good.
Obviously, you could get better pictures from a better camera, but I recommend learning what you can with the camera you already have. When you get into a groove and know what kind of shots you want to take, then you could upgrade.
BTW...did that bugger stay still for all that??? The sap must have been getting him high