There are at least four different CR-90 Corellian Corvettes featured so far in Season 2 of Star Wars: Rebels and a handful of scenes are set inside them.
In Season 1's "Droids in Distress" we see inside Bail Organa's ship (which is so well-capped in DVK's answer) but all we see is a nondescript white hallway.
In Season 2, when
!the crew of the Ghost joins up with the Rebel Alliance,
the Ghost is often docked with one of the Rebel cell's three Corvettes, but a frustratingly few scenes take place inside the Corvettes.
In *"The Lost Commanders" there is one scene in a previously unseen war room:
There are no windows to space, so this is not the bridge. A turn-around does show us some guys in Rebel uniforms working at the computer stations around the perimeter.
Though we don't get to see inside a Corellian Corvette in the episode "Wings of the Master", we do get to see them actually running a blockade with the help of the Ghost, a fleet of A-Wings, and
the first B-Wing.