Wow, never saw this post first time around.
I really like that XP bar! It jumps out and awes me
The group window is so-so, but too block-ish or something lol. I'd say keep working on it if you wanted to do a complete set. It's looking very nice so far.
One thing I noticed, because I was trying to look it up myself was the group member's level display.
It seems you used "/GameData.Group.Group_1.Level" for each groupmember, but maybe I'm mistaken on the use of it? Just kind of wandering, because I was trying to figure out if this DynamicData is available.