Hi there,
I think you have a strong product and here's what I would suggest. More consistent photos with a plain background so that your items really stand out, if you can get them to show off the glitter too that would be great!
I searched hand glittered and you came up on the first page out of 250 pages. I wouldn't specifically look for glittered items unless I was looking for glitter. Use all your tags and try to incorporate 2-3 word phrases in your tags..hand glittered mug, pink glittered cup etc. Also, words like.. birthday gift, glittery gift, sparkly glass..
I'm not likely to be searching for a glittered mug specifically but when I'm looking for a gift for someone I might use a general term and see what comes up. Add more items!
And fill up your description a bit..create a statement that says what your items are and include words that would be in your title and tags. The object is to get your items seen and noticed and to capture the buyers attention with your description. I sometimes get stuck here because in one of my shops I sell photos and the picture says it all so I created something to add to my description that tells a little about me, what I sell, why and my policies.
You have lovely items and you will find that the little adjustments will make a big difference. Best of luck to you!