Hello! Your pixel game assets are amazing! I am writing a book on video game mechanics, and would love to use your free game art in the book. I will give you full credits in the book. If it is not too much trouble, could you please drop me an email saying that it is okay to use the Super Retro World and other pixel art designed by you in my book (since I need official permission)? You can reach me at: Dhulemaithili@gmail.com. Thank you! 😊