22 Showings with no offers. What do I need to do?

[Harry Williams]

My first (stressful) flip :)

The house is a 1,875sqft 4br/2ba with a front yard, back yard, carport, porch and back patio with built-in firepit. 

Comp average days on market is between 36-43 for this area of town.

My house has been listed for $549k for 19 days and we've had 22 individual showings and two open houses, but no offers yet. It's in a good part of town and one with solid demand. I am pretty deep into this flip and, unfortunately, there's not much room to price drop. The partnered project manager did not adhere to the estimated budget and the project required more work than anticipated. That is a conversation for another time. 

People who have toured the house say they "like" it and that the renovation is "great!". The complaints thus far have been primarily around lack of storage; although, each of the bedrooms has a closet with a sliding door, one shelf and a hanging bar. We built the master closet (located in the master bathroom) with wire shelves, drawers, racks, and hanging rods. We also put wire shelving in the laundry room. Not sure what else I can do. 

Below is the listing. We have one interested buyer who has gone cold (said they were probably putting an offer in 2 days ago but haven't heard from them) and another open house on 5/25 (this Sunday). If we do not get an offer from the interested buyer by Tuesday, we plan to price drop, take new pictures and repost. The sod currently looks a little better than in these pictures, the shower glass and refrigerator have been installed, too. 

Thanks for any input.