Oh hey, aren't those both suppressed weapons from WWII? I don't remember the names, but they look familiar.
I believe that is a Welrod Mk. I in her hand. The rifle is the De Lisle Carbine. Both are integrally suppressed weapons used predominantly by British operatives.
The Welrod Mk. I used 9x19mm rounds while the Mk. II used .320 ACP and had rubber wipes in the suppressor as well as baffles to mute the sound to around 73 Db. The wipes tended to wear out after 15 or so rounds. The Welrod's grip is the magazine with rubber around it.
The De Lisle Carbine is a modified Enfield Mk. 3 rifle action retooled to take .45 ACP. The De Lisle utilizes only baffles in the suppressor, extending service life and reducing the report to around 86 Db. It took M1911 magazines altered with a release catch for the SMLE mag release. Really effective out to about 100 meters, though you could push it out to 200 in a pinch, though the accuracy was a bit to be desired that far out.
The artist conveys a very powerful message behind random sketches of schoolgirls wielding firearms: Students should have rights to bring guns to school, not only arming teachers can make schools saver.