When looking at kitchen cabinetwork doors you should be looking at more than just a sample, but how the edge is detailed. The edging for polyurethane doors is seamless as it applied like paint and the "paint" just wraps around the top and side edges. You can't wrap a melamine finish to the front and four edges of a door, so somewhere there will be a tiny seam between the front and an edge. Some melamine doors have rounded side edges (which are wrapped) but a square detail to the top and bottom edges where there will be a tiny seam between the front face and top edge. With your choice of Jamaican Walnut this seam should be almost invisible, but is easier to spot on lighter finishes such as Laminex Parchment. The Jamaican Walnut in matt should be harder wearing than the polyurethane. Some polyurethane colours yellow slightly with age and exposure to sunlight and are almost impossible to match if you ever need to replace a door. But you could also have the same issue if the manufacturer of Jamaican Walnut stops making it. For resale the polyurethane is considered more prestigious if it is still in good condition. Why don't you ask your builder to see a sample of a polyurethane door and a melamine door so you can see the edge details?

Could you swap the fridge with the wall oven, going by your photo both fridge and Wall Oven would fit side by side. I would definately have the fridge on the cook top wall and not on the other side of the kitchen. I see by the photo that the timber beam could be in the way, I would speak to your plumber who should have a simple solution on ducting the range hood. A simple one built into a special cabinet above the cooktop can recirculate or be ducted outside by either exposed stainless tube for your industrial/country look or have the ducting boxed in, the ducting can be flexable so no problem avoiding beams.

A couple of things I'd do -- I'd do a teak mantlepiece , to tie it all in . Either the same thickness as the shelves ( looks 25-30mm ? ) or double that . Also , I think the TV is wall mounted , but I'd go higher -- my opinion is that there should be a 30cm gap between the mantlepiece and the TV , or go 'halfway' so theres approx the same distance from the TV up to the ceiling as there is down to the mantlepiece . Again , just a personal preference , but it's best to be looking up a bit , and have the TV angled slightly , OR have a low TV cabinet and sit the TV on it .

Look for Wenge Laminex, you can use it vertical or horizontal, we did this years ago with galley kitchen cabinets, it comes in several timber looks https://receptioncountersaustralia.com/products/new-york-oak-panelled-counter?variant=32050645073992&currency=AUD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_campaign=gs-2020-04-30&utm_source=google&utm_medium=smart_campaign&gclid=Cj0KCQiAkuP9BRCkARIsAKGLE8XrtyO3xL06WQVJFKP3yuhFgeuxwgHWMS9SG8wlEPhVyktXFAwDwrsaAqlTEALw_wcB