Thank you~ I did in Photoshop. I can't quite explain it myself, but if you open the Window tab on PS you will find a window called "animation". You play with the layers and timing and you can make your own animation.
By the way, and I hope you don't mind me asking this, but may I do a fanart of these characters? I love them so much, and I'll definitely give full credit to you. If you don't want me to though, that's just fine, I was just asking.