practice

There's a reason for why this picture is called practice.  Here eyes are too wide open to be saying that she feels relaxed.  Her shoulders are too close together to say that she feels okay.  To me she looks scared and frightened.  

In the background, the clouds are piled on top of each other, seemingly in layers, thus adding emphasis to how high the sky extends.  Given the expression on her face, I don't think she likes heights.  This picture is called practice, so she's scared because she's going to have to practice something way up high in the sky.  And she's very scared that something could go wrong, and then she ends up falling a great distance.  Or she could even be scared that someone she loves and cares about is going to be practicing something dangerous at a very high altitude.  

I love how you colored the clouds and sky.  I love the detail that you gave to her blonde hair.  Her hair looks and shines like gold.  In real life, it's like her eyes would be green or hazel.  It was good and wise of you to give her freckles that are light and faint; that was good.  

This picture has the appearance of being simple because you just have the girl and the sky.  But it also has some complexity to it because of the detail you gave to the clouds and her hair and face.  

Good Job on this picture!