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Can I change the order of my Favourites or select what shows up in the Favourites section?
To rearrange the order of the thumbnails in your Favorites, simply go to your Favorites page and drag and drop any of the thumbnails as you please, in the Favorites section as well as in the Browse section. To move a deviation to a different page of your Favorites, drag the desired thumbnail down to the bottom of the Favorites page and drop it on the desired page number, which will move it to the top of that particular page.
Your Favorites page consists of two main sections - Featured and Browse. All deviations you add to your Favorites will show in Browse and are by default added to the Featured section as well (unless you add it directly to a collection folder, in which case it will only go into that folder and the Browse section, but not the Featured section).
Since it is your Favorites, you can decide what to highlight in the Featured section. You can add any deviation from the Browse section and collection folders by hovering over a thumbnail there, clicking the pencil icon and using the "Copy to...' menu to add it to the Featured section (or any of your collection folders).
Vice versa, you can remove any deviation from the Featured section by hovering over a thumbnail there, clicking the pencil icon and using the 'Remove from this folder' action or the 'Move to...' menu to move it to another collection folder.