The second project is done in much the same way. I painted a smaller piece of Masonite with pearlescent acrylic paints: a gold first, when it was dry a dark violet across the top and bottom, then a bit of magenta streaks in sky and water. Allow to dry.
Now squeeze some white craft glue in a somewhat triangular shape in the center of your painted board.
Choose beads for buildings arranging them to suit with some taller ones toward the center and shorter ones on either side.
Allow glue to dry and finish with a spray of fixative. Fast and easy!