Subtraction

Process - Subtraction: Start with a monocoloured dot, then subtract with the eraser tool. What you end up with is a negative lense effect.
I thought 'why am I trying to copy a whole landscape scenery when I can't even copy a tree'.

Tools:
Erase tool
Blend tool
Mono colour

Layers:
Negative space?

Sta.sh Uploads 5607 - Hobby-Crafts's Sta.sh