The pictures are too blurry to tell. The greenish-brown fish appears to have 9 vertical bars, which would mean it is not a rotkeil/red neck severum. They only have 8 bars. I could be mistaken though, given the quality of the pictures.
The brightly colored fish hiding behind the sponge filter is what's known as a super red severum, which is a line-bred version of a gold severum that shows enhanced red/orange coloration.