A hip hop album, Angels Exodus sees Lil B deviating from his usual subject matter to deliver more serious and introspective lyrics.

Although Angels Exodus received mixed reviews, many critics considered it a display of Lil B's artistic growth.

[6] On the album, Lil B strays from his usual subject matter, and delivers serious, introspective lyrics,[10] while still retaining the humor of his previous releases.

[9] On the opening track, "Exhibit 6", Lil B raps over a slow, dark instrumental, and shows appreciation for rapper Jay Electronica.

[10] During its last 30 seconds, he repeats "don’t let the vampires get you", with a vocal inflection that critics compared to rappers Nicki Minaj and Biz Markie.

[9] Although Angels Exodus received mixed reviews, critics generally felt it showed mental and artistic growth from Lil B. Brian Richardson of Tiny Mix Tapes said he was surprised by Lil B's lyrical and rapping ability, and wrote that the album proved his potential.

Richardson commented that Angels Exodus "plays more like a mixtape than an album", and said that some of the shorter songs felt like "unfinished sketches".

She concluded her review by writing "Even mass amounts of hype can’t cover up Lil B’s poorly mixed vocals, off-kilter methods of blending rapping with simply speaking, skewed perspective on life, and utter knack for taking what makes Rap great, and doing the exact opposite.