this the first instance where i think the manga looks better than the anime. while the animated version didn't look bad, and still looked very pleasing; the original's shading really gave the cave extra depth, particularly with the tunnel in the background and the wall in the foreground
also i can only imagine how long it took to do the shading on this panel, i've tried to do stuff like this in the past and it takes HOURS to cover even a small amount of the background