I disagree. I'm going to be critical here because I've been dabbling in real estate photography myself lately, and there are some issues here than can be easily resolved.
Compositionally, I like it. This has a "come sit here and enjoy the sun" feel to it, which is important with this kind of work. Technically, however, there are some problems. For one, it's tilted to the left. With this type of photography, your vertical lines have to be arrow straight. This is okay for SOOC, but some edits here would've gone a long way.
The lighting is off. You have exposed for the outdoors, which leaves some blown out areas (on the swings) and a lot of underexposed areas on the interior. Outside the windows are nice and bright, but the room itself isn't well lit.
Conversely, if you expose for the room, the light from outside resembles a nuclear blast and everything gets blown out through the windows, and you can't see the outdoors at all. But again, if you try to expose a happy medium, you end up with a half-lit room and the edges of the window frames are blown out. There are only 2 solutions:
1) HDR. Expose for the happy medium and render it correctly in post processing.
2) Additional flash/lighting is needed in the room. Given what you have to work with here, and all the flat angular surfaces, it would be difficult to properly light this room unless you had a pro-level lighting setup.
If you have neither, a little bounce flash off the ceiling would go a long way to helping turn this into a better image.