Be nice. Making skins that were cobbled together from ripped sprites/textures is how I got started in game development.
That said, this submission would probably be better served as a forum post asking for feedback/tips....such as proper scaling.
This is turning into quite the extensive collection - nice addition!
Have you checked out this set? (there are links to other sets in the same style) in the description.
If nothing else, you might be able to commission the artist(s) who made them.
your work is amazing
Going in a new direction with your art or just having fun?
Either way, well done.
That's a spritesheet.
Each image represents a frame in the animation. Run them in order to see the entire animation sequence.
Some engines will separate spritesheets for you with code, others will require you to create a separate "object" to hold the frames. It really depends on the engine you're using...check out the documentation for how to package and run each frame.
If they're truly Public Domain (CCO), it means you're not asking for credit. The other licenses say you ARE asking for credit...I think that's the confusion.
Your website implies they are CCO - which means anybody can use them for any purpose with or without credit.
I recommend starting a collection of the art you're going to use.
It will generate a downloadable credits file - you'll still need to review it for accuracy, but most of the heavy lifting will have been done.
Found this project a few years ago - good to see it's still going.
New asset directory looks great. Well done.
I believe this is the current collection. It has all the new entries from the last 6 months or so. Scroll to bottom for downloadable credits file.