I see your home is no longer listed. Florida homes and unique ones like yours draw a lot of attention from foreign buyers. Have you considered using an international brokerage like RE/MAX which has offices in 83 countries. If you would like some more information let me know.
Did you pay an appraiser to give you a realtistic idea of the current value of your property? For the minimal $400 you can get a very clear picture of what your property is truly worth. Of course you have nice customized decor that you appreciate but an appraiser will give a value of what those items may be worth when a bank ultimately does their own independent appraisal. It's not common for a buyer to pay ALL CASH so your home will have to go under scrutiny based on sales of similar homes in your area.
Once you get the appraisal in your hands, then go and interview Realtors. It's sad for me to say, but some Realtors do not pay the minimal extra marketing fees to Realtor.com so they cannot customize the description and add a virtual tour and multiple photos. Most buyers are getting pre-sold via the Internet so it's crucial your home is adequately marketed online.
Hope this helps.
All the best,
Charles Rutenberg Realty of Kissimmee
By indicating that there is an MLS number sounds like you have a real estate agent working with you. You need to be heavily on the internet. Your home should have it's own web page, be advertised on all the real estate sites, Google your home's address and see, have your agent write a blog, as well as some luxury ones such as the Wall Street Journal. At the agency that I am with we have a special luxury home site for homes over $500,000, which your home sounds like it might qualify for, that gets special attention.
Contact me if you have more questions/concerns.
Charlie Chorman - REALTOR
Coldwell Banker Vanguard Realty