I have pages available as electronic downloads that can be printed on your choice of paper. Visit my online store at http://gumroad.com/ColoringGifts to see my current selection, which changes periodically. I sometimes add page bundles, seasonal pages, and pages from upcoming books I’m working on.
I have also added subscriptions to improve ease of access to electronic downloads. I’m using Patreon to distribute my newest, exclusive pages at very low prices (Patreon is a subscription service where you sign up to receive different rewards from artists).