Very nicely painted figures, thanks for sharing
when I do complicated heraldry I make the design I want on a the computer using Mircosoft photo it or paint design. Then print out the shield or banners I want to fit the size of figure I am working on and glue the designs onto the figure or flag pole. I have used this method on 28mm and 25mm and see no reason why this method will not work on 15mm figures, its takes a bit of practice to get the size correct but the effort is worth it.
Paint the figure to standard required, then glue on paper heraldry (wood glue or UHU glue). When dry paint edges of shield with wood glue and paint to blend colours together. This method works with caparisons on horses as well.
Lamming figures 25mm.