These are the battle sprites
From the left they are, standing, stepping forward, swinging arm back when swinging weapon, casting/victory/item, low on HP/bad status, dead.
There's a few limits I have to explain first though.
Notice the red square of the tile I have selected?
You see the stepping forward and stand still use the same tiles for the 4 x 4 top half.
Under palette you can see a few selectable dots. These are what palette they use in fact wee're limited to 3 colors of two palettes, 3 and 4 cannot be used. 3 is taken by the cursor which is also used when a character has been turned to stone while the fourth one changes at random times.

These are the over world sprites (the editor just calls them mapman) There's a few limits here too. The black and skin colors are shared for everyone and you shouldn't change these. Also while the sprite has a total of 4 colors, you can see that the top haf uses it's own palette from the bottom. Lastly, the up and down walking just mirrors the sprite to create a walking effect however the top half remains the same. This can get annoying when or if you create some asymmetrical characteristic

Let's just worry about the graphical standpoint for this part for now, this means you shouldn't worry about the palette too much.
On the screen shot you can see two small enemies. These enemies can fit up to a maximum of 9 on screen. On the bottom there are two larger enemies and these can only fit up to 4 one screen at once, or 2 large enemies with 6 small ones in front.
And the fiends and chaos though can only fit in ones. Speaking of them, their graphics are different to edit. They can have two palettes.

Also I currently have the empty space selected. It makes it seem like you're limited to what you can edit but that's what the re-palette and re-shape options are for. They're a little hard to explain and you'd probably learn better if you try it for yourself.

There are 6 classes in total which promote later into 6 upgrade versions of their class.
There are some characteristics that cannot be changed (in my power) I'll mention (some of) these as I go.
Obviously wee plan on making original classes right >_>

Fighter (cannot learn magic*)
Theif (cannot learn magic*)
Black Belt (improves without equipment and there's just seriously a lot glitches with him (and the rest of the game))
Red Mage
White Mage
Black Mage

Now for the promoted classes

Knight (cannot learn spells above lvl 3**)
Ninja (cannot learn spells above lvl 4**)
Master (see black belt)
Red Wizard
White Wizard
Black Wizard

*(Actually they might be able to use spells, they just they their MP locked out until they promote but this can be easily changed)
**(Now I have no idea how the MP growth works in this, it can be edited but last time I tried, things got messy)

Not sure how wee'll approach this

There are 128 monsters, that's all I'll say for now.
More details under the monster section under graphics.

Remember that Chrono Trigger: Crimson Echos incident? um yeah >_>; Although I find it unlikely to happen to us