Thank you✌️ Heat a small corner of black plastic (remnant of an injection-molded grid from model making) with a lighter and stretch it out. There are definitely videos on RU-vid.
What the heck did you put on stations 4 and 5? What is that supposed to be? Also the shiny bare aluminum of the napes is a no-no. They were always painted with a flat black. The Mark 82 fuse extenders did not have rings on them and they were never black nor painted black.