I just compiled this collection of photographs of how Lewis Glacier has changed between 2003 and 2014. The photos are not perfectly aligned as they were not taken from the same view point, but I did my best to align them on the basis of Mt Kenyas helpfully spikey skyline.

Note that (1) I am missing some years, (2) the first and last photos are not taken by Rainer Prinz of our research group, and that the month of these images differs from (3) the middle 6 images which were all taken by Rainer Prinz at the transition between February and March of the respective year.

You can really see that the glacier is thinning as well as retreating at the margins, and the surface transitions from convex to concave over this period, and of course the rock bar emerges progressively in the middle, as I documented in a previous post: https://lindseynicholson.org/2014/02/lewis-glacier-splitting-up/