Are these 64x64? I can't tell from the thumbnail.
All graphics are not created dependent on the grid, everything is your own graphics with different sizes, designed for the battle system of the RPG Maker MV and MZ.
When im at Home i can Look for the bigest and smalest graphic
Hey the smallest Monster have 50 x 40 px on the slime ,the biggeset is the snake with 228 x 215 px