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I've written plenty of longs and know it can be hard to hold the audience.

To create that, I used Krita. Grabbed a color, picked a tool/brush, applied the colors nonchalantly. Then used another tool that morphs the image, creating those circular bubble-like features. Then once I noticed the face I simply sprayed black over top everything else, isolating what appears to be a face and a dog.

When the longs is riveting, I can give it a shot 😀
Wow! The drawing really caught my attention.