I made these when I was about 9-12 years old. They looked very similar to each other so I changed the designs a little bit. I don't really like the blue one, but I think I will draw the other one again soon.
If I remember correctly the yellow one was called Caramellz. I used the same name as a username in a swedish virtual horse pet site.
I will change its name because Caramellz sounds really stupid.