I can tell to 99% that its Dynasty. Why woud anyone even buy such crap for 57$ + the ZygorGuides for $40 lol - now just buy your lvl 90 char from blizzard thats cheeper. All I can see from the
screenshots of their webpage is that even the class infos they give are crap
As I can see from your addon list you don't even use the addons it includes (why DynastyTycoon if there is free Auc-Advanced etc.)
Anyway it also coud be XPerl - Why do you use XPerl AND Decursive if you also have ShadowedUF installed?! You shoud realy take a look in the options of the addons you use to find out that you can remove half of your addons without loosing any function. Or even better download a finished UI from this side and only add addons you realy need extra Some UIs are:
Supervillain UI - Comic Book look
RealUI 8 or
LUI v3 - Spacy look
Roth UI - Diablo look - well but hard to use for beginners
FreeUI - very minimalistic - also hard for beginners
TukUI /ElvUI - Clean/dark look many raiders use it includes basic addons.
Qulight UI - Clean/dark look - I like this one because it works and I coud play with it very usefull special buff displays.
My UI (LeilaUI) - very customizeable + has ALL addons you'll ever need - Atlas and Auctioneer are not included.