This was a low poly model created for the Man Of Letters anime graphic novel project. The ASX25 is a plasma style sci-fi weapon. While these renders are from Blender's EEVEE, the base model was created in SketchUp for the purposes of importing into ClipStudio Paint.
I want to leave a shout out to Chip Walters for his amazing sketch-style render settings for blender! (seen here in the black and white images)