If u want to use title pls use descriptive title like: Spiked High Heel
Not stupid question which have every second post, for example like:
Do you like this shoes?
Which color you like?
Generally less info = post look more professionally
You can use name of your shop instead of tile if u want, as my opinion is that people in 95% cases react on images and they do not care about some title.
Titles = not important.
Watermarks & Logos on images
I do not like that as is deceasing reach of posts so u have less clicks on link = less sale, coze images with watermarks looks like scam from Alibaba, so people do not like them as they do not look professional and do not reacting on them.
Pls posts at least posts for 3 days in advance.