I actually made this one quite some time ago after a visit at my local IKEA store. I fell in love with the OLUNDA picture but I thought it was too expensive to be that doable plus I wanted a black frame instead. So I ended up with a black RIBBA frame instead (and some other stuff of course).
At home I googled for images of butterflies to use as templates for my new project. I arranged them and drew lines around their edges, printed it and cut them out on a white piece of paper.

I didn’t cut them out completely, just around the wings but left them connected to the body.

And finally I arranged the cut outs with some nice colored paper on the back in the frame.

Super simple and very nice! I’m not sure I would do another one in the near future… my hands are soar from all the cutting