Wainscoting is wood panels or milled bead board installed on the walls from the floor to some height usually 3 to 4 feet up the wall with a horizontal chair rail type molding at the top and baseboard molding at floor level. Looks from the photos like you found something depicting bead board ?
Really nice job, makes me want to take my Rico station out and do some remodeling in the future, of course mine too is 90% assembled, bummer... Great colors for that structure