I should have been working on the blue and lime squares, but then I got sidetracked by a butterfly pattern.
I made one from the pattern, although I found it a bit tricky to understand, and decided it was too large for me, and too 'lacy' to look very realistic.
So I set about modifying the pattern to make it smaller and easier to follow.
I ended up with these butterflies...
... and a heavily-modified pattern which I have published for FREE in my Ravelry Store.