I will show you how to make your own character without character loader and how to make a graphics mod!
1. Have the source of vanilla mari0 or almost any mari0 mod
2. Locate graphics/smb/player and options
3. Download a picture editor (one where you can draw pixels)
4. Put the marioanimations picture in the editor
5. Draw Mario! (erase left-over pixels from the original Mario)
Sorry but I don't have enough time for the rest. I will edit this post later.