Login to your Campaign Cloud account, hover over the listing and select 'Artworks' (or search for your property, then hover over and select 'Artworks').
Click the item name in the grey banner (e.g. 100x 2pp - A4 Brochure - Gloss).
Click the 'Proof' button below the artwork preview on the right hand side of the popup window.
Your download will generally open in a new browser tab, or save directly to your 'Downloads' folder on your computer.
NOTE: This popup window also holds valuable order information like your Order Number (beginning with OI-), The ordered quantity and product, the supplier name etc.
You can also toggle through to the 'History' Tab to view the items progress after you have approved it.