My first real project since the beginning of my learning is to do a Platformer with a RPG dimension. Here's the first draft : 

https://kthulhu1947.itch.io/pixel-and-platform

The tiles size is 48x48 pixels. It's a little knight who can walk, jump, fall, attack and be hit. I used it on a 32x32 platformer with a scale of 1.5 because I wasn't able to see the eyes...

Hope you'll enjoy it.

You're free to use and modify it as you wish.