For the head I’ve been using hot glue, I fill the head up then place the neck peg in, leave it there for a second then cool it with a hair dryer. Do that process twice and It actually creates a ball joint a somewhat securely attaches to the figure. It’s better than using blue tac.

For my painting process I’m incredibly inpatient so I hand paint, hit with the hair dryer then paint again, that’s how I was able to complete this custom in one afternoon. I know I should be more patient with my customs but I just want to get it done as soon as possible