When I designed this pattern, I was hoping to use it for a plastic canvas project, so the colors are very simple and correspond to the yarn that I have to stitch with. Because of this, they're not as bright as the ones that get printed on this character's stationery and toys, but if you ignore the provided floss color key, there's not enough detail in this pattern that it should be challenging to find the appropriate colors. I sort of like this color scheme, though, especially with the brown outline, so I think that I'd use it even if made this project into a normal cross stitch. As always, though, the colors that you use while stitching this are completely up to you, so I hope that, however you decide to stitch or bead this, you end up with a project you like!
So far, things have been going well with this post, so I think that I'm going to stop now before my computer does something weird again. Have a nice day, and good luck with whatever crafty stuff you're doing, too!