The HDRI image that I use comes from CG-Source and what  I tried was to not only see it from the window, for that I could just do a photo-montage, but mainly to see the reflection on the glass and a little in the fishbowl. I did the rotating camera so I could see a part of he window and the small plant to the right of it, and also to give it a more original look. Also try to let the sunlight into the room because the scene was a bit dark and on top of that to add some gloss to the whole scene.  —Pablo Garcia