The ear is nothing, the little "bubbles" are normal. The IGWT shows a D that was damaged. You can see that whatever damaged the D also damaged the W slightly. Everything else is due to circulation. There is nothing out of the ordinary.
They aren't plating bubbles. They are characteristics of that particular die. They appear to be parts of the beard that remained after the die was polished slightly. probably in an effort to remove marks due to a previous die clash. This is very normal on coins. Errors and die varieties are beyond the norm.
Above the E in WE is damage. Look above your arrow, there are nicks on the rim. The coin took a "hit" as we say and the metal moved. The coin itself is scratched and banged up and metal movement is a common thing. What is above the E is displaced metal caused by circulation.