Please excuse the MS Paint handiwork.
Assessing the left-hand edge of the 'thumb' profile, our left, it seems the new 'thumb' is wider relative to the advertising logos.
The change in perspective makes it difficult to assess precisely, but even the widest measurement of the old 'thumb' appears to be narrower.
The more visible change appears to be the transition in profile under the nose.
The nose also appears to have receded an inch or two relative to the mounting point and rear edge of the front wing.
Disclaimer: I am aware the images do not share identical perspective.