FF6 style GBA adult Rydia

[Ghost XIII]

Here I am not getting back to you till a month later, I need to be around these boards a bit more often.

So the last 4 colors of the pallet will be replaced on a need to basis? is there any way to know what colors will be used? my idea is to use black and white colors from the npc palettes on my character spritesheet for "eye white" and "outline black". does that make sense? possible? I have not looked. doing that would mess up any other sprites i assign to my palette though because of the color order huh?

To answer your question as fully as possible, when you create a custom palette for a sprite, you should be conscious of two things: 1) Keeping things clean so they can be used in other hacks with ease, and 2) being conscious of how changing a palette will affect all other sprites which might use that palette. Every palette used for PCs/NPCs is 16 colours, and are in a particular order which is:
Slot 1: Transparent
Slot 2: Black (For outlines, etc.)
Slot 3: White (Whites of eyes, etc.)
Slot 4: Eye Colour
Slot 5: Hair Colour (Light)
Slot 6: Hair Colour (Dark)
Slot 7: Skin Tone (Light)
Slot 8: Skin Tone (Dark)
Slot 9: Clothes Colour 1 (Light) ]-Often 1 & 2 are similar in tone
Slot 10: Clothes Colour 2 (Dark)]
Slot 11: Clothes Colour 3 (Light)}- Often 3 & 4 are similar in tone
Slot 12: Clothes Colour 4 (Dark) }
Slot 13: NPC colour] - These last 4 colours cannot be used for your player characters
Slot 14: NPC colour] they do not appear properly in battle and will constantly be
Slot 15: NPC colour] shifting hues depending on the background or monsters in any
Slot 16: NPC colour] given battle. These are for NPCs who do not appear in battle only.

You can deviate from this order if you would like, but the end result will be a messy palette that will most likely be unusable for any other characters or NPCs, and when you only have 6 palettes to chose from every one of them counts. Since all palettes follow this formula if you chose to deviate from it the most likely outcome from a different sprite using an out of order palette will be a messy, incomprehensible blob and your quality work will go unappreciated.

So being the bearer of badnews on this one, you will need to go back and simplify the colour selections on your Rydia sprite. Fortunately that's not as bad as having to redo the entire thing, worst case is you still have very good outline of all your frames. Also if you are doing this for your own custom mod you can cheat the colour selections a bit as long as you know what you're doing (save for using the last 4 slots, they are right out as any possibility for a PC sprite, sadly.) I hope that wasn't too repetative, I'm not talking down to you I'm just trying to be as clear as possible.