I purchased your assets, but I noticed the images lack animation. How should I use these assets in my project?
That depends on which engine you are using.Look up how to import "Sprite Sheets" in to the software you use.
I'm using Godot; how do I create an animation effect with these images?
I've never used Godot before so you'll need to look it up. Just google how to import sprite sheets to Godot. If you are confused about slice sizes, I've already included .txt files in the pack that tells you which asset is what size.
Alright, I suppose the principle is similar to water surface animation in 2D games; I'll give it a try