This is my first post in a month. I sacrificed my summer vacation to finish it.
I finished the red Gundam with an airbrush using water-based hobby colors and brushed on enamel paint. The paint I used was a mixed salmon pink for the main pink part, a red specifically for red Gundams for the red parts, and a mixed orange-yellow for the yellow.
I also used a metallic black iron color for accents on the joints, weapon rack, etc.
It took about a month to complete.

Red Gundam (fully painted & slightly modified) | NAYUTA's Gunpla works