Thank you! The majority of the art was from a pre-made tile sheet I found online. I think a lot of people assume I made them without checking the details page. Perhaps a credits screen is necessary for a future update. I'm glad that you enjoyed the gameplay!
I did check the details page though, and I think sometimes a nice choice of pre-made art can be just as good as art that you made yourself. But a credit screen is a good addition too. If you can check out my game and my art, that would be great! Cheers!