Don't know how to describe it, but the new style is an abomination.
The windows/tiles style you're going with isn't working.
The new tile/square like button's are 2 big, and both icons and text inside them isn't working. Also change their colors to something less invasive then light blue with white text.
It does not read well, and is to bright compared to the rest of your website.
Also the difference between different area's in the context isn't working. It's not clear where the previous content ends and the new content begins.
In the files tab the whole overview is gone. Only big button's, icons, and stuff i don't need anywhere. I just want a clear list of the files i can download and their version, date, and file size.
Also, please put the tags into a different tab as well, the big button's below the images aren't working.
To summarize: Fix the spacing and borders between your components. Get rid of the big square buttons, tiles and icons everywhere, and make the colors of the different components less intrusive.
Try to display the info you need on a page, and hide all other things in tabs, dropdowns, or remove them all together.
Files: create a clear table with the content details and 2 buttons: Download, and Details. Display all unnecesarry info on a different page for those interested.