Lovely shop!
Your staging is beautiful however, for me, the watermarks are really distracting. I fully understand why you have them but perhaps choose one font/style and then make them discreet so they do not compete with your pretty items. Just a quick suggestion.
As for whether you should worry...not at all in my opinion. I suggest working on adding more items and focusing on SEO - titles and tags are SO important. It took me a LONG time to get my first sale. With the help and suggestions of team members I have been able to improve my little shop.
The sales will come:)
Best of luck.