Hi!

First, my apologies if my edits broke things…

Second, at the very beginning of https://wiki.openstreetmap.org/wiki/Key:image it says "the proposals for this tag were rejected due to several problems with the tag", and then lists a few issues which are fairly severe, to my opinion. On the other hand, using a pointer to a Commons gallery or category avoids most of these issues. So, I just followed with the approach that looked more correct to me.