sandevistan, afterimage trail rainbow order
Difficult concept and I suck at training loras, so don't expect too much. Some sort of sideways movement/positioning helps the effect not be mirrored behind the character.
Other frequently used tags: male focus, anime coloring, anime screenshot, jacket, 1boy, david martinez, black hair, solo, 1girl, yellow jacket, shirt, weapon, green background, holding, robot, mecha, topless male, yellow background