New Oil Painting for SS

Good morning and Happy Sunday! I've been working on a couple of paintings recently. This first is of my youngest granddaughter and is from a pic I took last summer at the beach.

I still have her skin to finish. This will be my first attempt to paint skin in oils.
Below is a wip, done in acrylics.

This too, is taken from a picture of our neighborhood. When I run in the evening, I see this scene from the top of one of the hills.
This last painting I shared on my last post. I think it's finished, but I have a problem I hope someone can help me with. It's painted on canvas board, and the board is slightly warped! If you know how to fix this, please let me know, as I was hoping to hang this in my craft room.
That's all I have for now! I'm linking with Sunday Sketches, hosted by the sweet Alexandra. I hope you will join me in seeing what other artists are making this week. (Link is on the right)
Have a wonderful week!