I'm down the road from you!
I'm in line with most of the other advice you've gotten.
1. I always have professional photos taken and always when it's vacant.
2. I use the best interior photo that I have - usually the kitchen or living room with lots of light - as the first photo.
3. I think your rent is at market at best & possibly too high. Rentometer says average within a mile is $1145 and 75th percentile is $1284. There are 2 other Zillow listings relatively close that are lower and 1 has an additional bedroom.
4. I'd recommend using Facebook marketplace as well - it's a very successful way to advertise here in St. Louis.
5. When I talk to other landlords who tell me they're having trouble leasing a property, and we've covered all of the above, there is usually a process issue as well. Something along the lines of - it's difficult for people to schedule to view the property, landlord is taking too long to get back to people, there's a full application to view the property, etc.
6. Finally, if you have people who are interested, ask for their feedback - why did they call/inquire, what did they find helpful, what could be better, etc?
There is a shortage of housing here as almost everywhere so there's a reason you're having trouble, just have to figure it out. Let me know if I can help further.