I'm not sure if I've caught Mosaic from that angle, but I'd like to at some point. It is neat to see it juxtaposed against the DT skyline if you're driving up Almeda, or from the park as it looms over the trees.
The second crane is up at One Park Place now.
Is it just me, or does it look like they've finished the first part of the podium and are getting ready to focus on the narrower, residential portion of the tower? I know they've started on the rest of the base (closer to 4 Houston Center) recently as well.