Are they on canvas or ceramic? A closeup would be helpful, front and back.

The price is really going to vary on the age, the quality of the painting, the subjects and the use (pins/pendants might go for more than something not wearable, as well as the framing. Is that a gold jewelry frame or a gilded wood frame.

You're not going to get a good answer on the internet. I'd go to an appraiser. If you put them in an auction, the price is really going to depend on who wants them.