Okay, so the type of resources you're looking for are the RTP style (Run Time Package) which is included in the files of the game by default.
Well, there are several ways to tackle this. The problem is that the RTP style isn't really used much these days apart from a select few.
What I would do is, search for "RPG Maker 2003 rtp addon". It comes with a bunch of extra files for the RTP of that specific type.
But as said. RTP styles aren't used any more, and as to that, Enterbrain don't work with the RPG Maker 2003 style graphics any more.
What I WOULD recommend for a person looking for perfect matches with face sets ect., is a program called Face Maker 3.1. Which you can download here.
Allows you to create the closest to the RTP Style graphic face sets. You can literally customize them to any way you want through a large set of Pre rendered graphics.
Because Face-sets for a specific character are usually hard enough and require a LARGE amount of searching and luck, Face Maker allows you to make a face equal to the sprite (even if they don't match, you can make it.)
As for character sets and battle sets. You need to go to Charas.net's character generator which hosts a large display of separate parts for you to put together to form a character.Which is here.
And of course, the battle character set generator.Which is here.
And if you don't like those, then your only real choice is to go for a different graphics style. I recommend you look into a graphics style like First Seed Material.This website.
It hosts a large set of popular graphics used to RPG Maker 2003 users. I highly recommend you go over there and check out the Face Sets, Map Chips and Character sets there. The sight is Japanese, but I had it translated via Google Translate, (Or Google Chrome does it for you).
(Click of DOWNLOADS and then look to the right of that page. It'll say
Click each like respectively and check through them and see if you like the style.)
This post has been edited by Essenceblade: Mar 14 2012, 01:51 PM