Unsure how this happened as I exported it using the save for web function in Photoshop which lists all the colours and I don't remember seeing multiples of anything. Thanks for the heads up, I'll fix it tomorrow.
Also thanks for all the comments on everything else, appreciate the time you spent writing them.
Good job! I took a look at the specs here and noticed a high color count. Not unusually high, but after examining a little bit, it looks like several colors are quite close in value (about 6 of each are basically the same color from what I saw). They look as if they could be the same color if you don't zoom in, but they are reading as several different hex values. I just thought you might like to know so you can clean it up and lower your count. If not, it's still dandy. 
You're welcome, my friend. I really had things to say because of how interesting all your work is. I hope you keep making and submitting these cool pieces!
I understand all too well how glitches can mess up your art. There's a program I use when I'm on mobile that, while I love using the program, every time I finish I have to export into Gimp and redo the colors. It's annoying! But I'm used to the process now so whatevs.