This artwork is from a late-1980s manga series called “Metal K” about which no great amount of information is available online in English. According to machine translation of Japanese-language sources here and here, Metal K was first serialized in a weekly called “Shonen Jump”. The author/illustrator’s name is given in some sources as Maki Kouji, in others as Koji Maki or Kōji Maki, and in still yet others as Makiraiko-shi. That last link also contains a 656×1024 image of this artwork as it appeared on the cover of a “Jump Comics” publication that apparently collected Metal K into one volume.
Image provenance by Bacchus at Erosblog.