Mark in progress.

some problems remain.

but it will be released soon.

preview 

The goal is to mask as many regions as possible. The masked area reveals the original image.

Looks nice.

I would change the enemies graphics.

Maybe with colourful butterflies.

thanks for your advice…

butterflies is good idea. 

tested 

but i’m sorry.

Butterflies don’t see enemies. Even looks friendly.   :unsure:

so. i need to change others.