I think your kitchen has really good bones! I like your cabinets, counters and floor tile. The wall tile, however, is a missed opportunity and kind of looks like it's floor tile. I would replace it with something with a lot more texture and style and I would go with a neutral colour other than black or white. Replace the curtain above the sink with a roman blind in a colourful fun fabric. Add a funky colourful mat on the floor. Maybe get rid of some of the clutter on the countertops. Replace the clear candy dish and the fruit bowl with something modern and colourful.