I used your Fireball in my new game, Unholy Siege, and have credited you in the game. Thank you for your amazing work. I truly appreciate it! 
Thank you so much! I'm really happy to hear that you used it in your game. Unholy Siege looks great from the screenshot. Thanks for giving me credit, and I wish you the best with your project!
If you ever need a pixel art asset and can't find what you're looking for, feel free to send me a message. I'd be happy to create it for you for free if I can.