Replying to @kkingsbe
Today, the focus for Carto Art was with cleaning up the WIP colored hillshading layer. This works by taking the elevation data per tile as input, and then normalizes the elevation values and maps onto a color ramp gradient. Then, this layer gets draped over the map/terrain layer as a custom source, allowing for not only this beautiful view from top-down, but also while viewing in 3D mode with volumetric terrain.
Very happy with how this turned out from an artistic perspective!
Try out Carto Art yourself at cartoart.net