As you can tell (hopefully) this is a Pikachu. A got it from a site called Deviant Art.
This is a Raiku. It's one of the legendary dog Pokemon. It's an electric type. Isn't it cool?
This is a beautiful heathy Arcanine. It's a fire dog thingy. I can't decide if he's legendary or not. But I know for sure that you use a fire stone to evolve it!
This thingmabober is a Lugia. They are also known as "The King of Sea," Manaphy is "Prince of The Sea." (all four pictures are from Deviant Art)