Optical Illusion - a less successful try

It seems that April is an especially busy month for everybody. I have to apologize Nienke for not being able to try out her excellent tutorials - but I'll do it, definitely, later on. For the meantime I would like to show an another try towards optical illusions, though a much less successful one - but we also learn from our mistakes, don't we?

Some years ago I tried to create an optical illusion by piecing stripes together. As I didn't take photos during the process, i can only show the half-finished results, which I abandoned, when the constructional mistake became apparent. 

I pieced the yellow and yellow-and-light-green stripes between the dark green ones. I wanted those the stay orthogonally to the surface so reinforced them with a thin but stiff interface. The interface increased the thickness of the stripes which created a "tightened" effect between the dark green stripes there, where I haven't placed the yellow stripes in-between.

Conclusion: if we want to play with dimensionality, we need to use end-to-end stripes, like Nienke did. So as soon as i'll have time, i would like to try out her technique and  i'm really curious to see the results.