Seriously good floyd, really nice attention to detail, particularly in the bolt heads on the scaffold towers and the little metal tangs to hold the glass balustrade panels in place. Really great to see modelling that is sensitive to the principles of engineering and physics. My only crit would be that the tower girders appear to have no depth, and just look like flats. Steel can indeed be quite thin yet very strong, but these girders look a bit paper-like. I think this is a really fantastic piece of imaginative modelling and I can't wait to see it completed.
PS: The yellowish appearance of the underside of the platform, also visible in the down-facing faces of the display screen supports, is normal for an ambient occlusion render in Anim8or, if you have not added any light sources. The default scene lighting (no lights added) is a moderate brightness, white distant light overhead, and a slightly yellowish one below. Once you define a light source these default lights disappear, so this won't be a problem in the final, fully textured "beauty" render(s).