Hello, your assets are very good !
May I suggest you add a license to the asset ?
It will help you with the referencing, and will help users find your page.
Since you are not requiring credits and allowing modifying, maybe the CC0 will match what you have written on the asset’s page.
Or CC-BY-SA, and then you can remove the crediting requirement, if you want (CC-ShareAlike does not exists but you can give more rights permissions to users, see their doc).