I just started this, so it is sketchy, but I need to keep a connection with you all right now, because I am in a slump for various reasons. From the traditional Catholic Latin mass for the dead, in a fairly traditional style. I guess when I lose someone, it makes me long for the familiar, rather than breaking new ground, because new ground has already been broken to bury the loved one.
When I write a choral piece, I often map out the basic chunks, and often I start with the choral parts. I also tend to ignore smooth transitions in the beginning, just getting out the major themes and parts of the music, which is why there are awkwardnesses here and there.
Don't waste too much time with this if you are busy... there may be more later if inspiration continues.