Just found your channel. Great job on the body. After being out of the hobby for 20+ years i cant wait to use my airbrush now. Now i am trying to figure out using my Cricut Cutter to do my designs. Have heard also that can use my Warhammer Vellejo paints on the body. The Shifters would look unique for some details.
I like to use cling film to flop the design from one side to the other. Do the lines, then cover with the film and trace, stick to inside on the other side, and trace again. Saves some thinking and hopefully some time. What paint do you use for the teal/ light blue colour you have on your normal race shell?