@Herma0lovely space! I think the market is telling you that weekends are more popular than weeknights, so try varying your pricing to capture that supply/demand dynamic. Right now as $120 per night you are aiming for $840 per week. Perhaps change your weekend price to $170 Friday and Saturday and $99 week nights--to entice mid-week travelers and full-week vacationers.
I would also consider getting a professional real estate photographer for photos. Its an expense, but a pro's ability to correct the lighting to show indoors and outdoors at once is really worth it.