I like the changes you've made so far, it's a great improvement. I'm new at this too, but here's my two cents worth...
First, I personally wouldn't get rid of the sunlight...it's a nice touch. What you might consider doing is put something in front of that light source to simulate a tree, window frame, etc. to cast a shadow on the floor. It will add a bit of detail to what is a bit of a dead space, and balance out the scene a bit better.
Second, the bottom cupboards, counter top and backsplash all merge together because they're all light colors...I can't tell at a glance where one begins and the other ends. To me, your black coffee pot looks like it's floating in space, and it's a bit disconcerting. Maybe make the counter top dark (something like a black marble) to create separation between the cupboards and backsplash. There are some other possiblilities too...change the camera angle to be slightly higher and pointing downwards so you can see the top of the counter. This will also take advantage of the lighting in the room to pick up the shadows. Shadows, after all, create the sense of depth in a flat picture.
It's already been mentioned to add some stuff to the glass cupboards and counter tops, but I'll pass on a suggestion I heard recently, and it made a lot of sense to me. Think up a story for the scene - who lives here? Is it a family, a working couple, a retired person? What ages? What interests do they have? Foodies? Computer and gadget geeks? Into modern or retro? A story will help you decide what to use to populate your scene, and create a bit more interest.