This set comes with ten minifigures: Anakin Skywalker (wielding two blue lightsabers), Barriss Offee (wielding Ventress' lightsabers), four Anonymous Sentinels (their faces would need to be printed with a mask design, as shown here:
Master Sinube, and Padawans Petro, Gungi, and Ganodi. Sinube also appeared in Season 2, Episode 11 to help Ahsoka retrieve her lightsaber, while the Padawans appeared in Season 5, Episode 6, The Gathering.
On each end of the hall, there are connectable pieces, allowing you to collect a series of dorms/halls, and connect them to make one long hall way. There are two windows on each side of the dorm that are able to come off easily, simulating Barriss breaking through the glass. There is also a glow-in-the-dark lamp in the bottom right corner in the dorm images.
I hope you like this set. If you have any ideas of improvement, don't hesitate to let me know.
May the Force be with you.
P.S.-Here is a link to the battle.
Anakin vs Barriss
If you want to have a smaller set, check out TooManyBrix's set,
Star Wars the Clone Wars: Barriss Offee V.S Anakin Skywalker
Edition 2.0 Update, December 12, 2013. 25 supporters.
Additions: None. Rendered set, and included link to TooManyBrix's set.