I wanted to show my Barbatos in battle with Grimgerde and Barbatos is winning. I used spray can paint and hand painting with a little bit of airbrush. I then used a sponge technique with black and silver paint that I learnt from YouTube to make the Gundams look like the fighting has damaged a bit of their paint. I also added some wires to Grimgerde. I also used Gundam Markers.
Each gaze is important in a scene where the two sides are grappling with each other. Since Barbatos has its head positioned high above the ground, it is easy to see where the eye is looking, so keeping the gaze on the opponent will help the viewer to understand what the situation is like.