Near us Purple Bricks has a crap reputation as an agent and weren’t great when my MIL bought via them in another area.
My feedback as others say is that the photos were maybe taken on a dark day as all lights are on but it implies it’s not a bright and airy house. I’d try and add some large impactful plants in nice pots front and back to improve the garden and kerb appeal.
It looks well maintained and clean and buyers can repaint as they wish if they don’t like the bright colours.