I’m going to reply before looking at the other responses so I’m not influenced by them.
I don’t see that many properties with guide prices where I live, so I’d be unsure how to negotiate. Do any offers have to be within that range, for example?
The external photos are OK - the light looks good and the sky is blue. Shame about the soaking wet ground, though (yes, I know you get a lot of rain). It looks a bit stark to see no green space outside the front of the house - could you add a few planters with colourful flowers, or trees in pots?
The interior is very tastefully decorated and looks fresh. A buyer could easily put their own stamp on it or leave it as it is. If I’m going to nitpick, I’d say the sofa looks a bit big for the living room and may be making it look smaller. Also, the room in photo 10 would look better without the baby stuff.
Photos 12 and 13 look OK, but a bit bland. Maybe a few distinctive accessories would help show these rooms off to their best advantage? You have excellent taste OP, so you probably don’t need any help here.