Photorealistic professional commercial product photograph for a UK water storage packaging supplier. Show exactly two natural translucent white HDPE water jerry cans: one compact 10 litre can in the foreground and one larger 25 litre rectangular stackable can behind it. Both containers have clearly visible black screw caps, integrated moulded carry handles, clean unbranded surfaces with no labels or printed text, realistic proportions and subtle natural plastic translucency. Place them on a clean warehouse work surface with a softly blurred modern industrial shelving background. Premium studio-product lighting, crisp focus on the containers, restrained navy blue and soft grey environment, realistic shadows, wide horizontal composition with uncluttered space. No blue or black containers, no extra cans, no logos, no text, no watermark.