concept art for my original undertale au, incandescentale !!
human souls glow, and in turn, humans do. they tend to glow with the color of their attribute !!
monster souls do not, however.
slight change in underground design; it is a bit more dimly lit (except waterfall)
so humans tend to draw more attention !!
chara is surrounded by the absence of light, they weren't always like that ....