Hi Spinner,
I like the overall look of the logo but I have to put a small damp on it...This will work fine for some things and not as good for others.
The text is way to small compare to the logo itself and will just wanish on a stamp for example. The font is another thing, you want people to be able to read it right away, to capture their intrest:-) If you look around in the "logo world" all the good ones is "KISS", easy to read (if any text), easy to understand and often a very simplified design without any guesswork of the meaning of it.
Also have in mind how big/small you want a makers stamp to be = How much of the space of your work the stamp is going to be allowed to take...
Now, I'm with your lil sis (in-law) I don't get it, I wish but???
I hope this helps you a wee bit on your way to the logo perfection:-) My very best advice to anyone making a logo is: Take your time, once you have one you have to live with it, maybe for a very, very long time. My own logo tock 6 moths or so to create.
Have a fab day//Tina