Honestly, it presents as tired, bland and dated.
It is so grey which is the most depressing colour on the planet. When I looked through the details all I could see is the whole house would need to be redecorated which has a cost and hassle implication, when people have moved they don’t want to commit to weeks of redecoration. The size is generally good but the presentation could be massively improved.
Look on the Farrow and Ball, Little Greene, Lick etc websites for inspiration and then get to work.
The fitted wardrobes are dated and look like they were fitted in the 1990’s but might be massively improved with the middle floating panel over the bed removed, new doors and a repaint.
Your entrance hall is the nicest area as it has a hint of colour.
Also take the hideous office blinds in the lean to/conservatory down. Let some actual light in.