Hi Carl ...
Listened to all the samples and I think you did a very nice job. All were well-performed, mixed and mastered. I liked the relative simplicity of the arrangements - and that's not easy to do and still get a full, rich sound, which you did.
I particularly enjoyed "Let's Walk Along" and "Doubt". They were all very good, but those two stood out for me.
Nicely done ... I enjoyed them, Good luck!!!
Alan