Hi Paul. I agree with the other comments that most people would probably use the search facility rather than categories to find a jewellery box. However, it's important to put all your items in the most relevant sub-categories as these effect the search results, ie if someone searches for 'jewellery box' and your item is listed in the 'jewellery box' sub-category' it will show up in the search results.
@SashaGarrett is right about the tags too. If you make a few changes to your tags as well as your titles and descriptions your products will show up in more searches and be more visible on Folksy and on Google, because 'Search' takes all these into account, along with the subcategory.
To make your items more visible, these are the things I would suggest:
Update your titles to include the words "Wooden Jewellery Box" and/or "handmade wooden jewellery box, or "hand-crafted jewellery box", "heirloom jewellery box"
Add tags to all your listings (this article explains how to do that http://blog.folksy.com/2016/11/22/how-to-use-tags)
Tweak your descriptions to include phrases and words people would use to find them.
As an example, here are some things you could try for this listing https://folksy.com/items/4155554-Jewellery-Box-Sycamore-and-Rosewood
Change the title to: 'Handmade Wooden Jewellery Box in Sycamore and Rosewood - 5th anniversary gift'
Add these tags to the listing: wooden jewellery box, jewellery box, sycamore jewellery box, handmade jewellery box, rosewood jewellery box, artisan, heirloom, anniversary gift, jewellery boxes, anniversary gift, 5th anniversary, 5th anniversary gift, artisan craft, luxury gift, trinket box,
Change the description to something like this:
"This handmade wooden jewellery box has been made from sycamore and rosewood in my lovely old woodworking workshop in Norfolk. It would make an ideal 5th anniversary gift.
The main body of the jewellery box has been hand crafted in solid sycamore and I have veneered the top with 20 pieces of shard-shaped San Domingo rosewood, edged with a black inlay in a classic Art Deco style. It is detailed at the corners with slithers of veneer at a dovetail angle. The entire box is finished in a silky smooth lacquer.
This decorative wooden box could used as a trinket box, a keepsake box or a jewellery box. It features a removable tray with four smaller sections to hold earrings, rings, cufflinks and smaller pieces of jewellery and two larger sections for necklaces or bracelets. The wooden tray is fitted with a carved handle, which allows you to remove it easily and reveal the bottom layer. The jewellery tray and bottom are lined with a light brown, suede-like material.
This is the first jewellery box I have made that features the "Smarthinge" – a top-of-the-range, solid brass hinge with a built-in stop, now contracted to be made in the UK.
The box measures 300mm x 160mm x 75mm. It is made using traditional craftsmanship skills and as an heirloom piece it would make a wonderful anniversary gift, possibly for a 5th wedding anniversary which is traditionally celebrated with a wooden gift."
I hope that helps.