I've blocked in some of the colours of the icon. The dark parts are the sanquir, which are deep shadows. I'll paint bright colours over top.
Almost immediately, I botched Joseph's halo. I used a compass to lay in the paint, but I made the radius too large. Red paint doesn't erase, it just stains. However, the part that got stained will be covered by dark paint, so the mistake will be covered over.