Some nice work.
But I’m not sure about the file format for your audio files.
e.g. You need to pay 2500$ if you sold more than 5000 games.
Am I allowed to convert it e.g into wav. Did I still used mp3 then?
But wav is quite big. How about ogg? You might have an optional download link for ogg file format (or acc? don’t know).
But that don’t work for MonoGame
-> Monogame pipeline need .ogg file support!
Also for image files, jpg is some lossy file format. If you have too much free space you could also store it in a different file format (if your source is not a lossy format like jpg). But that might generate many traffic and storage for your nice page.
And don’t want that you get in any trouble. Are you allowed to offer them as Royalty-Free? Not 100% sure about the licensing. Are e.g. the programs you are using to generate those audio and images files allow you to offer them Royalty-Free?