The problem is that I have to be super resourceful and do a ton of free craigslist finds because my parents will not likely pay me to do a complete room makeover.

This is what I had in mind so far:

I want the three main walls plus the closet wall painted green, and the left hand side wall to be painted brown or black with painted grey "bricks" to outline where my parents fireplace will be (they have an electric fireplace in their room), and I would like to install a mantel to place candles. Along the top of the wall I'd like to install shelves to place fake plants and knick knacks. I would like a chair in the corner and a loveseat across from it. I would like a small dresser or drawer to place a single-cup coffee and tea pot. I would also like a small water fountain to go in the opposite corner as well as a fish pond for the closet. Personally, I would love to get a bath tub fish pond because I've had a life long adoration of the idea of fish swimming in a tub.

That's what I got so far.