What is your question, Avenger? I believe he is meant to be a Leutnant of either a Bavarian or Wurtemburg Jager regiment, what was called a Schneeschuh (snowshoe) Jager of the Alpenkorps ca. 1915. If you need help with uniform or insignia colors, I believe I can assist with photos from Armes Militaria or Uniformes magazines or web sources. I would need your e-mail address, of course.
All the best,
Dan