Fishing for compliments.

A busy morning, cleaning the bathroom doing the washing, the usual boring stuff. Only been out to the local shop, and that's about it. This wooden carving was given me to years ago , when I worked in a department store. The lady who bought if for me was called Doreen, and hadn't been working with us long.  She went abroad somewhere on her holidays, and brought this cute little carving back for me which I thought was very thoughtful of her. Can you see the tiny fish inside? I wonder how they did that? I thought it would be perfect for today's challenge.
Thanks to JDO for hosting.