I very much appreciate the simplicity of the art of sewing especially by hand. So Good idea. The picture perhaps is a might to clutter and you could have done away with about 50% of the items shown and still gotten your message across whilte having a better composed image. the one scissor handle also might have made it totally into the shot. Nice exposure and detail, hmmm color of the background might have better chosen, perhaps darker but as neutral as the one shown.
Sewing itself might be a simple theme, but the photo seems unnecessarily cluttered to me... I may have tried shooting just one spool and a needle, for example.
Overall interest : 1/3
Technical : 3/3
Challenge fit : 0/2 (this setup is too complicated, and i've no feeling of the "simplicity" concept)
Wow factor : 0/2 (sorry)