Your gallery now takes advantage of infinite scroll. However, you can decide which deviations appear on certain pages.
To do this, you will need to enter Edit Mode for your gallery by selecting the "Edit Page" button near the top right of the page.
An "Edit Your Gallery" banner will then appear near the top of the page, and you can select the deviation you wish to move by click-dragging the deviation thumbnail.
To select multiple deviations, you can ctrl+click (command+click on a Mac) on each thumbnail, or click in the empty space next to a thumbnail and drag a selection over the thumbnails you want to select.
Once selected, you can drag the deviation(s) to the bottom of the page, then drag them to the page number on the pagination feature at the bottom of the page before the comments area. When you release the mouse, the deviations will be relocated to that page. Once you have finished editing, you can click the blue "Done" button near the top of the page to set the changes.