The ship that T0-B1 finds is a T-16 Skyhopper. This ship can be seen in the background in the Lars family garage in Star Wars: Episode IV - A New Hope (1977). The Inquisitor uses a TIE Advanced v1. This variant of the TIE Fighter was introduced in Empire Day (2014).
The drawings on the wall shows Luke Skywalker holding up the lightsaber and a large group of X-Wings flying upwards in formation like on the original episode 4 poster. Also visible are the Jedi Temple from Coruscant with several Jedi, including two resembling Yoda and Kit Fisto. There are four A-Wings chasing four TIE Fighters and a large space battle involving Star Destroyers, TIE Fighters, X-Wings and Y-Wings. Below this there are marching AT-AT and AT-ST Walkers flanked by Stormtroopers. The duel between General Grievous and Obi-Wan Kenobi is represented, as is a battle between two Jedi and one opponent using two lightsabers, a possible representation of the fight between Qui-Gon Jinn, Obi-Wan and Darth Maul.
Professor Mitaka shares his last name with Lieutenant Dopheld Mitaka, the First Order officer who informs Kylo Ren that BB-8 has escaped from Jakku in Star Wars: Episode VII - The Force Awakens (2015).
Most of the Aurebesh visible in T0-B1 translates to Spanish. Some of the more briefly-seen parts directly translate to the lyrics of the song "Malamente" by Rosalía.