The finish is wood varnish, I didn't want to get into CA finish for now
I just noticed the second one is not bocote but madrone burl, I still don't know my woods that well and those blanks are mixed together.
Sorry about that.
Your pens look great. I'm sure that the number of people who go straight for the fountain pen kits right out of the gate is very few, nicely done. Now I feel like I ought to stop procrastinating and order a fountain pen.