Crown roof (swimming pool) 3

If only it was as simple as just selecting '?I' in Photoshop. But it has had the same effect - inverting the roof colour, but with a bit more effort.

This is stage 3 of 3
Stage 2 here
Stage 1 here

Damage: one palm blister from paintbrush, scraped knuckle from dustpan & brush and a brush, roller, shirt and pair of trousers in the bin.

Job done (phew)! Should be good for another 10 years at least.

- wait a minute, aren't pools supposed to be light blue?