What feedback are the agent giving you from any viewers - other than the standard "drop the price"?
I think some of the photos look great, but others could be improved - especially the utility room - defo remove clutter on top of cupboards, and take washing out of machine!
Agree with other posters re: removing the animals from sun room, defining the study better, and better pictures of bedrooms to show space for bedside tables, wardrobes, etc.
Definitely try to make the most of kerb appeal, even a hanging basket with artificial flowers would help! This would also help with the back garden too.
Another thing i will.suggest, having viewed a few houses recently myself, make sure the pictures reflect the reality! I.e. the pictures suggest that the house is well finished kn terms of decor and immaculately clean. If this turns out to NOT be quite the case when viewers come, they will be put off and underwhelmed! You want the photos to look great to encourage them to visit and then the reality to deliver even more than they expected.
Think beyond just "clean" and get a trusted friend to cast a critical eye around for tired woodwork, scuffed paintwork, badly edged flooring, grimy inner window frames, poor seals/grouting in bathrooms/kitchen, musty or animal smells etc and tackle those. They really should be quick and cheap to do!