To reach this level with so few attempts, is an accomplishment.
The second portrait is actually quite good. A bit more work on the skin color, and a change to the dress color, and it is beautiful.
For landscape, it is really a matter of many attempts. But already you are doing great. It is hard to draw rocks, and you did it.
Here is something I tried when I just started:
And, here is something after MANY attempts:
Thank you. Yes, we didn't expect at first how much rocks are difficult to paint!
Waw, you're painting is just breathtaking.
Thank you :o)