Cats and bees. Tileable image in the attachment. Made with Krita.
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By Elena Pollastri.
To rapidly tile an (already tileable) image in Gimp: main Menu->filters->map->tile and enter the new dimensions. For example if you start with a 400x400 images and enter 1200x800, you get 3x2 copies.
To do the same in Krita there is a G'mic filter, Array&tiles->Array[regular].