Hi Patricia,
I love your idea of adding an electric fireplace to cozy up your condo in the winter months! I would add some colorful local art to brighten your space as well - color in photos draw attention and will make your condo stand out better as guests search. I would bring color into throw pillows, add layers with throw blankets (especially in the winter), a bright rug (jewel tones)... I am all about layering and adding texture, and providing guests with something unexpected. After making the improvements you decide upon, I would hire a professional photographer to take new pictures. Include a coffee/cocoa station in the kitchen, complimentary toiletries and have them take some close ups of those things as well. Maybe a cozy throw on the back deck over a chair with hot cocoa on the table - give them the experience of enjoying the view. Then place your best 5 photos first. I would include 3 interior photos and 2 exterior within those 5 and make sure the interior photos show 3 different spaces in the condo - kitchen, living, bedroom. In my descriptions, I try to write them giving guests an idea of the experience they will have in the property. "after a day of... retreat back to the condo for ..." or "this is a great home base after exploring..." Add games for 2 and 4, books, cards, etc. and include them in your pictures. Make sure they have things to do in the space while there. I would also add a small wall-mount tv in the bedrooms, Americans like their tvs! Your park like setting is beautiful and I would play on that with describing all there is to do and see. Best of luck!
Melissa