I shot the clouds in a fish tank using evaporated milk. The bottle was then photographed seperately and everything was composited together in Photoshop. Keep an eye on my YouTube, I'll be covering this soon!
YouTube - https://www.youtube.com/channel/UCs5iYpxbrWwB15wkTx4Pq4w
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Business Enquiries - max@squaremountain.co.uk
love it!