White appliances are cheaper and look fresh if you stay white and light throughout.
If you don't have room for island a peninsula can help give the same feel.
Even a small island works
Small kitchen big island
Same tone in kitchen extends to eat in area for a bigger feel
Comfy chairs near the kitchen
If you have brick or beams staying rustic is nice if your furniture stays neutral
Love Benches in corners
Benches give a small space big seating
Color can add fun