as for titles and tags, i just learned that apparently we should be using very descriptive titles with tags that exactly match phrases from the titles. if your tags aren't also in your titles, then apparently you will rank very low on search. So, for this item
http://www.etsy.com/listing/100428346/embroidered-mini-zipper-pouch-red-andI would title it something like
Embroidered Mini Zip Pouch Red Gold Floral Small Pocket Change Purse Makeup Bag
Assuming that fits into the allowed # title characters.
So then the tags would be "mini zip pouch", "embroidered pouch", "change purse", "makeup bag", etc.
You could also try using words like "bold", "colorful", "stripe", "color block" etc, whatever fits.
i think the length of your descriptions is fine but you can probably get rid of the links at the end.
your photos are good but i would mix up how you crop them-- you know, show just a corner, or a different angle like looking at the zipper--- just to add some visual interest. i would definitely try to keep the bright white background going forward with new pictures.
Hope that helps!