Do white counter tops and backsplash before you do anything else. It also looks like you ceiling isn't painted yet, paint it white. Those things will bump up your white factor substantially.

Best wishes!

I love it. Would do all the above - also consider, the floor and cabinets are blending together a bit. Maybe stain the floor black - do all white thick countertops on island, white permitter counters and white backsplash. Paint ceiling white or light blue even for pop (don't know if that will work with rest of kitchen) - you will have light and bright kitchen and pretty cabinets.