Here's a nice photo from the Shipfax blog that shows the library crane.
I wonder how noticeable the library will be from this angle when complete. One height mentioned on the library website is 27 meters. The post-bonus HbD height map for that block shows 28 m. That's about the same height as an 8 storey residential building, which sounds pretty plausible for the library given its floor count and higher ceilings.
27 meters would not stand out downtown, but you can look at the curved roof on the Medjuck building addition to see the higher elevation of the library lot. I think the library's upper floors might actually be pretty prominent in the skyline. Given their distinctive style they'll be an interesting addition.