Interesting look. You’ll often notice MD at the tip of the ear (shelflike appearance). This looks more like a blob - thickness in the lobe. Considering how the working hubs are made, doubling generally occurs around the center of the coin. This is confirmed by the plethora of DDRs around Lincoln in the Memorial and the Ocean nickels. I’ve not heard anything about the Lincoln bust but the earlobe is at our about the center.
It’s certainly not like the ‘typical’ double ears. But the thickness has me curious. I’d like to see another 2005 aside this one.
Improper lighting with shadows that make a well struck coin/ear appear doubled at the ear lobe. Here is yours (1st image) next to a 2005 example that @Rick Stachowski posted in the other tread about a 2005 doubled ear. Notice the ear has the same shape and size as yours. Looks normal to me. It’s just what I see. Reed.
It's looking like it may be a bit of die wash based on the comparison coin. Other details look a little 'duller' on your subject coin. The detail in the hair and the lobe on the comparison coin appear sharper, but size appears correct. Thanks for the extra photos.