Hi there! First of all, thank you so much for sharing your work; the art looks amazing, and it's a great contribution being free.
I’m writing just as a suggestion to make it even easier to use in game engines:
Organization: It would be very helpful if the spritesheet had a fixed horizontal order, where each row corresponds to a different animation (for example, row 1 for 'walk', row 2 for 'jump', etc.). This makes slicing the frames much easier.
Space Optimization: There's no need to export frames for both sides (left and right) or opposite diagonals. In game development, we usually use just one side and apply a "flip" through code. By removing these duplicate frames, the file size will be smaller and more efficient.
Thanks again for your effort and for sharing your talent!