Not to take anything away from this exceptional work, but since you brought it up, Plastheniker, Codi, comp1839, StevenGuthmiller, Bill Cunningham, Chariots of Fire, and Randy Ditton come immediately to mind on this site. They work in very different styles, but nobody can deny they're all in the top tier of builders on the planet.
Then of course there was Gerald Wingrove, who set the bar so high very few will ever even approach it.
I'm continually inspired, and frankly awestruck, by all of them...including Scale-Master.