Chunky's good sometimes, not everything has to be delicate. How did you find Birch to turn? The little bit I have had was like turning wet blotting paper. (Mind you it had been lying in the woods for a few years)
This piece looks as though it has a medieaval influence. Like it with the burnt highlights
Same as everyone else said - it's nice,highlights work well,and nothing wrong with chunky :wink:
If making another,having the base a little smaller than the diameter of the bowl may make it look "lighter"
As richard says, base a little heavy but it came off the lathe in a near enough round shape and reasonable finish so what is there to complain about, well done.