Hi!
Is there any chance that you could write all your new Userboxes to match the ones that we already have? It's a lot of work following after you, trimming out all the excess space you're adding that causes the boxes to misalign in some browsers, and wrapping the "Category:Userboxes" part of the template in "noinclude" tags so that the category doesn't show up on the Users' pages.
Also, please keep the flag images at 40px so that they don't take up too much space on mobile screens.