Fighting Game Concept Art
Process

I make 4 thumbnails of the scene first

after i choose what thumbnail i like, i proceed to sketch it, and make some boxes for the anatomy

after i am done on the proportions, i proceed on making the line art

and then i proceed on 1st pass of coloring

added some of the post processes and effects to make it look good and interesting

Final output, i added some text and adjusted the image a little bit so that it is on the center

Concept for a fighting game, I use photoshop and then switch on using Clip Studio Paint for line art, and then use Photoshop again for the post process, effects and final output