Cannot see photos very well. Looks like a wood floor, wood table, beige walls, beige drapes,white cabinets, white counter top, black bar stools and black chairs (some fabric and some black wood).. Cannot see chairs well enough to make suggestions. Cannot see blinds nor "slats" well enough to make suggestions. A white ceiling might make it seem higher. Tulip art is colorful and fun, I'd hang it in the entry or living room.

The chairs are a good match. Leather is probably best, great for kids' spills and accidents, but any fabric will do. Not sure on purple with green - those two colours together clash a bit for me. The green kitchen looks great, and I'm a fan of dark wood. The only thing throwing it off at the moment is the yellowish coloured walls. If they were repainted a soft white, this would make the green and the dark wood really pop, giving you a fresh and sophisticated, calm look which I think would work well. You could then upholster in a green to match the kitchen which would look appealing. Finish it off by some fresh white flowers as accents in the room to draw the eye and you've got a beautifully transformed space with a fabulous feature dining area :)

Awesome upholstering job! The cobalt blue really compliments the peacock print nicely, whilst also making the chairs more fun and youthful

These chairs are easy to recover and the range of fabric available today gives you plenty of choice. I say go for it. If you don't feel up to it yourself get an upholsterer, but plenty of YouTube tutorials about.