I started to airbrush 2 layers with steel legion drab and zandri dust from GW.
After this was dry, i started to glue the basing material (sand, gras, cork, stones and some branches as trees). This took some stages. I have left the colossal base circle unbased to drill the holes for the magnets. I used 7x3mm neodymn magnets from ebay.
I used a coat of vallejo matt varnish over the irontape to avoid scratches. Then i superglued magnets to Deneghras Base and try to fit her.