I was able to convert this character to 1.0. There are a few visual bugs.
But here is a link
http://www.mediafire.com/download/gz2diyvcv6xmf79/B-Marisa+1.0.zip
I don't know much about coding either but I'll give you this advice.
It is all about patience. Making characters can be a tedious task, but in the long run when done right it can be worth it in the end.
I have had a problem like this while using Mugen 1.1, 1.1 handles palettes differently. Try using it in 1.0 or updating the character. There is a topic on the forum that could help you if you want to update that character:
Try uploading your image to a website. That way others can view it and help you with your problem.
Here are some examples:
https://app.prntscr.com/en/
http://postimage.org/
http://imgur.com/