Sadly, I don't have any pictures that I know of of these said critters, but griffins and Buck gryffs both spawn in Crater if you want to see them. :3 A majority of dragons spawn in Jungle, so you can see them there, and I myself have a Flying Panther and I could perhaps get online sometime if you want me to show it to you. ^^; While they do spawn in Town, they are INCREDIBLY rare spawns, and I haven't seen one spawn, even though I've been playing for over a year.
You can also check the game files and look at their textures to get a visual of their colors and what they may look like.