Thanks. Not sure how you did it, how I do it is:
1. Click "Upload Image from your device" then, after you've found the image
2. Click the box that says "Allow this template to be shared publicly"
3. Give it a name and, optionally, alternate names and descriptions
4. Click "Upload"
I'm not seeing any uploaded templates on your profile, so you either did it anonymously or not so much. It's just fun to play with, especially when you see someone else use a template that you've uploaded.
Anyhow, I might be able to use the image that you included here, so thanks for that.