I would say first photo house looks fine but you can see lots of rubbish and garden looks very unkept. Would clear excess rubbish and hide the bins if possible. Anything to make front garden look better would help, either all stone or all grass or some plants in pots in flower. Dead tree stump doesn't help either.
Photo 2 better but would take down picture and take blanket off sofa and cushions, don't match. The furniture also doesn't match and almost wonder whether taking all the chairs / sofas out might be better. Remove cardboard box and candles. Floor looks good and paint looks good.
Back garden OK, some flowers would help but OK.
Kitchen definitely ditch the tea towels, look dirty and put washing up sponges out of sight. Looks dated but useable.
Utility take dog bed and bowls out of pic
Dining room fine
Dolls house fine, rocking chair, picture and cabinet with china would remove as well as rug looks dirty and rest look old fashioned and give an elderly vibe which may put off families.
Red carpet is dire as very badly fitted, ideally replace with properly fitted beige carpet, if not an option try and hide the wrinkles. Walls would be better white and not with the border if time / money. Would remove cushions look dated.
Remove old paint can from garden and add some flowers.
Alternatively reduce price a bit.