Filipinac's 2018 Sprites

I'm noticing a pattern with your work here, a lot of it is just recoloring and slightly tweaking Locke, while Locke makes a great base for a lot of sprites, its best to differentiate the sprite as much as you can, consistency is key,

try a way to make it look similar from all angles, try to make it match in some way if you can, there are a lot of different sprites out there that can help, compare and contrast, find things that would look similar enough to what you are going for and then work on it from there, open more than one file and experiment, if you don't like the changes just save the older one, always export your work and make copies,

another tip is to look at old work for references and check where your flaws are, also look at where you improve, I assure you that you'll improve a lot by following these steps

keep up the good work