Currently, I do not have any finished slab alder kitchens in the gallery. They are out there, and we sell quite a bit of alder with a clear coat because it has a nice warm tone, but I do not yet have any customer-provided photos of slab alder projects.
Here is an older, early project that used Shaker alder with a clear coat. You can see the color tone of the alder well in these photos, so a slab alder kitchen would have a very similar look, just with slab doors instead of the Shaker profile.
https://www.barkercabinets.com/Shaker-Alder-RTA-Cabinets-s/146.htm