I'm sure some people will disagree with me but in my opinion a quartering towards you shot is not a good shot with a bow. I would have waited for a broadside or quartering away shot. Your goal should be to get a double lung shot.
You need to study deer anatomy and learn where the vitals are and what major bones come into play with different shots
Check this site out, it will help alot.
http://home.mn.rr.com/deerfever/Anatomy.html
You cannot compare a bow with a gun, just hitting the deer is not good enough with a bow. This is part of the challenge.
A good bowhunter can be judged by the shots he passes on... not the shots that he takes.
If I can help you in anyway just give me a shout. Have a great day