This reply is going to be harsh and I don't like being that way but if you want honesty here it is.
I'm not expert enough on most of your items to comment but on the jewelry pieces I have to say your starting bids are insanely high, far higher than the highest you could expect bidding to go, especially for what the pieces are and how vaguely and/or incorrectly they are described and shown.
For example, Charm Bracelet Vintage Rare ($179 starting), maybe LOOKS old but it's a 70's era India 'tourist' piece, not precious metal and in not-great condition, might sell for $10 as a Buy It Now, but even that cheap it would likely sit a long time before someone finds it, under such a vague title.
The flower brooch ($35 start) -where did you get that number? I'm sorry but it's not very old nor remarkable and has no maker's mark (the only thing that might give a bland flower brooch some value). Also if you search 'vintage flower brooch' you will see there are 80,000 results which is bad enough as far as visibility goes, but yours is not even among those 80k because you spelled it 'broach.'
As for the 2 supposed Australian fire opal necklaces ($855 and $1295 start), what makes you think those are real opal, let alone Australian fire opal? Even if they are, the stuff isn't THAT valuable, not even close. Also the vast majority of supposed sterling chains marked 'Italy' are actually silver-painted and made in China, unfortunately. And any time you want to sell a jewelry piece, if it does have some value, you must photograph the backs, especially if there's a mark (and it must be a clear, focused photograph to see that).
Speaking of that, the 'Neckless Green Stones and Pearls Vintage Jewellery' ($65 start) .....okay ....... first, it's 'necklace', also all blurry photos, no photos of the back, no clasp closeups, and even if this was a popular vintage designer like Trifari or Coro, it wouldn't sell for $65, maybe $25 at the most. The green stones are just glued-in, not prong-set, so could pop off very easily, in fact I think this is a 1990's 'retro' necklace rather than real vintage.
If your level of familiarity with the other categories of items you have is similar to your jewelry, you likely have everything under-researched and over-priced for starting bids. Again I hate to be harsh but didn't you think there might be a reason you haven't had a bid on anything in FIVE YEARS????
