VFX Compositor Needed for Photorealistic Cloud Effect (Commercial Project)

Looking for someone who can start immediately. This is a rush project with final delivery required by Sunday evening (June 28) or Monday morning (June 29 PST). We're looking for a talented VFX artist to create a quick, photorealistic atmospheric effect for a short teaser video. The project involves integrating a cloud-based visual effect into an existing shot. The effect should emerge naturally within the sky and feel completely believable, as if it were captured in camera. The biggest priority is realism. We are not looking for anything that feels overly digital or obviously CGI. The footage has already been shot and edited. We'll provide all creative references and direction. Potential for additional VFX work on future projects for the right artist.