Divide the room into growing zones rather than placing all six pots at the same distance from glass. Give the most demanding plants the brighter edge, leave width for palm fronds, and keep the Norfolk pine away from heating. Select sizes that leave circulation and usable seating space.
The message behind the grouping
Meaning, with a little thought.
Bold leaves, fine fronds, a sculptural base, and a tiered conifer create different visual personalities. Their combined meaning is room for different forms of growth, not a universal cultural tradition.