Looks great Ned, and I'll second what Vaughn is saying for sure.
One of the big mistakes I kept making when I started to roughout green bowls was to leave the base too thick, this was the source of many of my first failures at roughing, as the sides of the bowl were about right for thickness but the base was twice that or more, the sides moved a lot and cracked.
Are you going to DNA dunk the roughed out bowls? I found with fruit wood, and maybe cherry is or is not fruit wood, the DNA bath helped a lot with the roughed out blanks NOT cracking.
Keep at it!
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward