If that's something you have time for I'd happily use them, but don't worry about it if not!
It's very much a "nice to have" for my game. It's a simple classic solitaire game with a few faces to choose from buried in the settings. The others are utilitarian or classic. I quite like yours to add some variety and charm, but I can always add them a later date! There's little rush and it may even be a fun addition to arrive later.