my Friend both seem off a little
the left side is to the left and up very little and the right is down
it is very hard to lay out any thing on a curved surface
try this if you want us your compass with a lead in it {pencil lead}
and make and a fant out line of every circle on the wings so you know were to place the mask
this model is going to turn out like you DI BURG
GREAT 
you friend always Doug