The 1×1 plate with a printed black square showed up in 2017 as an architectural element in a few different LEGO sets. It has become a popular detailing element, especially in micro builds. This castle by Luka (First Order LEGO) has used it here to give this lovely little castle windows and contrast. He also used air tanks for the gate and seep, as well as white wands on the spires. I’m not sure if it’s intended, but the icy white and grey-blue look gives me a wintery vibe. Even more so with the nifty use of the medium blue Exo-Force hair on the lone tree near the base of the castle.
While you’re here, check out more of Luka’s excellent builds in our First Order LEGO archives.