I love such sketchy shooting. After difficult tasks where you need to meet the references, be accurate and please everyone, it's very nice to go into a free search! Look for pure plastic, free expression of movement, shades of emotions.
I have already written that it can be informative for the model - she learns herself, discovers herself from a new side. Also for me, the author, and for you, the audience. But there is also a certain amount of peace and relaxation in such shots. They allow everyone involved in this process to be themselves.
Thank you @epistem