Masking the thrusters on the legs and the backpack.
Since these are small in diameter, instead of using adhesive putty, just poke them with masking coat using a toothpick. 👍
After masking the outside with tape, paint in the following order: white → red inside → masking coat → gray around the edges. 😊
I still get nervous wondering if it went well when I peel it off. 🤣
Don't forget to paint the leg joints that you attached earlier to eliminate the seam lines. 👍

Masking and painting complete! | マギーン's Gunpla works