First off, your listing photos are confusing. Show it furnished (my preference) or unfinished, but not both. Reshoot so your kitchen sink looks normal, as has been noted. Get rid of the photo where the door to the master closet looks extremely narrow. What's up with the shoe racks? Fix them and reshoot. Nobody willing to pay top dollar wants to fix anything.
You may be used to paying $350 in HOA fees, but a lot of people aren't. What does it include? I don't use realtor.com much, so if it's there somewhere, that's good, but make sure it's obvious. If they are significantly lower than the competition, mention that too.
Any extra storage? What's the parking look like? What about laundry facilities? Also, the exterior of your front door and the inside of the lobby and common areas of the building should be shown [Edit: I looked again and I see the quad and bbq. Good start. Show more + photos trump artist's renderings.] Small one bedrooms are a notoriously hard sell. If your potential buyer is likely coming from out of the area, helping them "see" the full picture will generate more interest.
The price you get for any property is only what someone else is willing to pay. You are too high, drop it by what it will cost you carry for the next 2.5 to 3 months and get it sold. You won't be losing anything in the long run.
We own rentals and are always looking for our next property. (DH is searching today's listings and open houses as I write this.) I laugh my ass off when people play the lapsed listing/raise the price game. Do they think buyers are stupid and have no memory? It almost never ends well, plus you end up with a stale listing. That's usually where we search first.
Don't get me wrong, the place is cute and the bones are good. All of my suggestions are minor and easy to execute. You could do these things and have the place sold in snap, which is better than letting it drag out for months. Good luck!
[Further edit: Zillow shows you've dropped the price once. Raising it would be suicide, IMO.]
One more edit: the mirror in the bathroom is not good. Can you replace it with an inexpensive (but not cheap looking) framed mirror? That's what buyers want. (Gag, but true.)