John S ... I've started to listen ...
First let me say that having put together a couple of CDs myself, I certainly appreciate what a daunting task it is, and you should be commended first for your labors ...
Now, in listening to any CD by any artist, the first thing that has to 'grab' me is the song itself - not the performer or the performance ... this can be difficult, especially if it is a song I've never heard before as is the case with a few here ... they will have to get a 're-listen' ...
For the 5 or 6 that I've listened to, I will repeat what some others have said about the good use of vocals, VH, instrumentation etc.

keep at it ...