In many ways the angels are the most interesting fish in the tank. "Curious" is still the best word to describe them - the wander around the tank, examining things. They swim up to the Macropodus and look at them. They are great at begging - when I feed them the swim back and forth along the glass, trying to convince me to quit dawdling and feed them.
All four angels are in this picture, although they aren't all in focus. The largest of the four is in the top centre, between the Echinodirus petioles. The large one has discontinuous stripes. The two striped ones are to the lower left. They have very similar patterns and are about the same size. They're pretty much the same to me. The dark one is the smallest. While the largest has almost doubled in size, the smallest one doesn't seem to have grown at all. It seems healthy, but the fact that it hasn't grown suggests that something is wrong with it.
In this picture the upper one is the largest angel, the lower one is one of the two striped ones. There's a Java fern (Microsorum pteropus) next to them, and one of the non-Corydoras aeneus corys in the lower left corner of the picture.