As I mentioned when commenting on The Mighty Pack, I'm a bit wary about licensing. Would you mind being a bit more specific? (eg. If it's CC0, please say it in the description.)
...mainly because laws exist (which are intended to protect you from abuse by corporate lawyers) that say "'whatever' doesn't really mean 'whatever' unless you explicitly list certain things you're opting out of." That's why licenses have that big boldface blob disclaiming things like warranty of suitability for purpose. It's to protect you from the possibility of getting sued because of the implication that, because you made it and published it, it meets some minimum standard of fitness to be used. (Though, granted, that part is more about software which might get used in a business's critical processes and then fail, rather than art assets.)