Uploader credit and upload timestamp moved to description header to provide a better grouping of information. Image size and type info migrated up to near download/view buttons (also better grouping of information). Also some minor tweaks to the look of the description area in general.
Ad box moved from above description to below description to keep most image information from being interrupted by it as well.
EDIT: I think you were trying to re-consolidate two distinct informations: the image itself, and the uploader. I think this does not account for UI and UX concerns I describe below; additionally my understanding of description seems to not match yours - mine is “a short text describing the image”, yours seems to be “a comment by uploader on the image”.
This is not better grouping of information, this is worse grouping of information. Very important information (uploader, timestamp) now requires scrolling down instead of being immediately visible on page load.
And there is a very large area of nothing on the favbar on my, and others’, screen resolution, because some buttons have to occupy now-vacant second row.
Additionally “description is a comment” thing leaves a lot of space on the right unused due to being width-limited.
Please reconsider.
Additionally the down-arrow after “Description” looks like interactive element, but isn’t.
P.S. The static info in the header breaks down the flow of interactive elements. It should be placed after all interactive elements, not in the middle of them. All in all, I think that this change is strictly inferior to previous relevant UI.
P.P.S. If this is caused by Badumsquish issue (UI cannot handle amount of badges) I suggest a more moderate fix of adding an UI element that, when clicked, displays the rest of the badges if amount of badges goes over the width of the header (=would increase it to 3 lines instead of 2).