I plan to build Sinister Six and this will be the second member of the group. I cut out ultron antennas to get pumpkin look. Then I soak the ultron head and the base figure in brown dettol to remove previous acrylic paints for about two days. I mixed red and yellow acrylic for the pumpkin head colour and attach the head with hot glue trick. I black wash the both arms first before I painted it with green. Lastly I sprayed Bosny flat clear onto the whole figure to seal it. The weapon come from my previous custom (1:18 axe).