Very nice stuff. Is all the bass on these songs an upright bass (sounds like it) or are you also using the acoustic bass guitar that you're (or someone's) holding in the picture? I especially liked Fresh Air and Climbing Vine.
I thought everything was recorded well. The tone of the bass is very good; you might want a tad more high end on the bass when you're featuring the bass runs. Maybe a little more middle on the guitar, it sounded a little thin at times. There also might be just a little echo in the room. But these are all nits, none of these things are glaring.
I have no idea about how to record a bass other than what you've just taught me, but I do think that the best upright bass player that I've ever heard is Danny Thompson. Pick up a Richard Thompson & Danny Thompson (no, they're not related except by musical genius) CD if you'd like to hear something to be emulated........Enjoy.....