From what I'm seeing the overlay-scrollbar and topmenu-gtk-module are a
problem of their own. I'm having the same issue, broken topmenu-gtk-module
may explain why that component of unity is not working in this release. You
can ignore those errors, but it seems that scrollbars will not overlay as
they should, and the panel application menu, will not function.
> I also want to mention that in my screenshot the spacing and sizing of all
icons on the toolbar seems off as well.
Do you mean on the bottom panel, notification tray area?