I think it's a sharpness issue... the pics I posted are resized to 2K on the long end. At 100% you can def see the blur. The first pic you re-edited def looks better though. The second still looks blurry to me.
Those shots are with the 70mm...
Here are 3... the first two are with the 70mm, and not in very good focus. Aperture was 2,8, 1/200 and 1/160 SS. Auto ISO (150, and 180). Not happy with the focus...I don't think it's motion blur.
The third one was the 24mm, and looks fine after...