Pluto: The angel is a bit difficult to see but there's a full 3D model in the Nintendo 64 game in which you can easily view it in the model viewer option.
UrsusArctos: There are numerous scenes in the home video releases where the colors and lighting have been significantly darkened over the version aired on TV. I suspect something of the sort happened here, because it's difficult to make out much detail with Sandalphon.
