Hi Aneesh,
Thank you for the feedback.
#43 Addresses the blade lengths as requested.
#44 #45 #46 show some variations using red.
I am glad you like this concept. My aim here is to use geometry to describe any number of engine parts (of which the turbine was certainly an influence - glad you saw that) while also stepping the lighter blades to give the impression of an abstract wing in motion. The graphic is designed to have the double meaning of both precise physical, technical components and flight as an emotive concept.
Regards,
Robin.