Hi,
Thanks for those new propositions.
We still prefer #90, the black drawing and the shape suit us better. Furthemore, the painting is too restrictive ; our site is about any kind of exhibition (sculpture, drawing, video...).
Maybe, instead of a brain, could you draw an eye, with the colour points in the pupil (as in "we allow you to watch exhibitions happening right now in your city"), or maybe a stylised "e" (the "e" is not compulsory, but why not) either alone above the logo, or integrated in the word "exponaute" (with a big "e" at the beginnig or at the end, or both), or another shape with this soft style of yours in #90 (but that doesn't recall anythingin particular, say a distinctive shape) ?
We hope your right brain will help you ;)
Kind regards,