New (to me) Embroidery

I've gotten my hands on some lovely finished pieces of embroidery lately.

Found in my Nan's sewing stuff after she passed away:


These are done on black linen, and the colors are so bright (hard to tell in these photos).

Another find from her basket:
This one is about 4 feet long, and I have no idea how to finish it.

I picked these up at a local antique shop:

Any suggestions for framing/finishing are greatly appreciated!