Sprite Stitch Board!

Anyone kind enough to grant a request? I'm thinking of giving a more personalized gift to a friend on her graduation and I'm thinking of starting it early because I don't have the patience to finish it on one sitting.

She's into Adventure and particularly loves Fionna and Marshall Lee. It would be amazing if someone could help me convert this picture into a pattern:


If it's not asking too much, I'd prefer it color blocked. Something similar to this:
I've tried online converters but all they do is pixelate the image until it becomes a blurry mess.

Hoping someone could help me with this one.

Thank you so much!!!

This is probably waaaay too late, but I just watched the finale and was feeling inspired! I didn't make a pattern, but I did downsize the image so you can run it through pattern software at 1:1 scale and it should work well. I would advise doing some backstitching for the guitar strings.

If you do end up making it would love to see the finished product!