Note that those are all first drafts of creatures on the previous post. After he goes through the entire list we'll go over it together and decide how we want them all to look in the end. Most of those creatures are summon creatures, but there are a few from the original game. Look for the foaming cat, lizard, rat, blue angel and shrike.
Since we have so many summon creatures drawn here I'm going to go over the summon skill a bit. When you start the summoning skill you'll learn a single summon spell. After that it depends a lot on the other skills you have. For example, you won't be able to summon the shrike until you have a certain amount of both lightning magic skill and summoning skill. This isn't limited to only magic though, if you are good at summoning and animal training you can learn to summon the beast king (the winged lion)!