That was a hard nut to crack! I've tried many options and this one had the most space. Downside is the bed has to go along the wall. There can be plenty of cabinets in there, but not a large dresser. It would be ideal if your bed could be raised, so you can have drawers/low cabinets underneath it for storage.

Right now there does not seem to be any symmetry on the path to your door. I would either eliminate the small trees that are there now, and replace them with bushes or shrubs that are equal in height and width, or cut these back and shape them dramatically, so that you have a clear vision to the door. Second, if you could change out the door, eliminating the side window, that's another idea. Sometimes just replacing your front door with one that is bold in color or style is enough to breathe some life into the front of the house. You could also either replace the concrete with pavers or paint the concrete with stain of a color that blends well with with nature.. like a lighter gray or a brown.

I think a comfortable distance between the island and the counter is around 42". It seems that you have only 30" between your cook top and the counter. I might be a little too tight. The wall between the entrance and the kitchen could be 4' long instead of 6', you would then be able to move the island a foot which would give you more room between the cook top and the island. Could you switch the location of the toilet and vanity in your dad's bathroom so your enter facing a vanity instead of a toilet which is a lot nicer.

You may also want to consider a screen or pass-through bookcase to visually divide the "bedroom" area from the living area. I like your table and platform bed ideas. Consider whether the radiator will have enough room to "radiate" with a bed against it though. www.twitter.com/216Sharon