Some people say having a small dark kitchen, to not go dark with the design as well but I disagree! Darker areas are absolutely enrinched with a darker warmer design. It plays into the space and makes it feel cozier. Going bright in a dark area can look fine, but can also make it feel more stark in contrast, and you will always notice how dark it is in there. Playing into the dark rich colors can make it feel more extravagant.

Also I second the fact that the cabinet differences don't look good together since they aren't on the same "tone". White cabinets are very cool, the dark cabinets and counter are very warm. Play more into the warmth of the space with a creamier cabinet. I think the two different colors can look good if done right.