Eagle Nebular ???

Its size I'm told is 50 LY,and its about 7,000 LY from me(fine) I look
at it every morning,and always wanted to ask this question. How did it
create such a shape? Why do points,or lumps stick out of this cloud?
Some are very fine features. On its Eagle head top it looks hairy,and
causes light behind to look fuzzy. kind of like looking through a hair
brush. Could we super impose pictures taken at the same angle and see
how the structure of the hydrogen,helium cloud is changing? My mind
keeps telling me nebular clouds should be in the shape of a ball. Not
50 LY long. Even shaped like a frisbee makes more sense.to me Beert