Average [CII] intensity of slices of the 3D intensity cubes (in units of Jy sr⁻¹), plotted against the frequencies and redshifts of the respective slices. We separate the results from our cubes into the models from ALPINE and the models from the previous literature, in blue and purple respectively. We compared the results of our cubes to the equivalent statistic from previous simulated cubes in green (all taken from Karoumpis et al. 2022, including itself and Yue et al. 2015; Breysse et al. 2017; Chung et al. 2020).