How can I create rough brush dynamics used to create the sky in this image?
https://static.wixstatic.com/media/c8e62d_2f6f5dbead294cd3830d389ab59c9703~mv2.jpg/v1/fill/w_523,h_804,al_c,q_90/c8e62d_2f6f5dbead294cd3830d389ab59c9703~mv2.webp
