You could have atleast shown us screenshots of the backgrounds in the Overview since not everybody is familiar with this series (including myself). I also noticed that the images "hazbin hotel inside" and "hazbin hotel bar" have lower resolution than the rest but that can propably be fixed very easily. All in all, a decent background pack. But you really should use some screenshots if you upload mods in the future.
Been using this since release and it's just so much better than vanilla sounds. My only slight complaint is that the new 'hold' sound is just kind of....Odd. The vanilla one fits the action better I think. Other than that, great mod.