I built a GM Cannon. I had planned to work on it simultaneously with the blue one, but I got distracted by another kit midway through, so the red one was completed first. As usual, it's a straight build with full paint. The only modification was thinning the antenna. Is it based on the ORIGIN version? It has a great style and looks cool... I'm a little dissatisfied that it lacks some of the elements that make it look weak, lol.
The white is Gundam White (anime color), the red is Sazabi Red, the waist and other parts are Midnight Blue, the yellow is RML04 Yellow, the sensors are Clear Red over Silver, the other joints are German Gray, the verniers are Gunmetal, and the weapons are Metal Black (as always).

HG GM Cannon (Space Assault Type) | すろはん。's Gunpla works