Ginga is an open-source astronomical image viewer and toolkit written in python and hosted on Github. It uses and inter-operates with several key scientific python packages: numpy, scipy, astropy and matplotlib. In this talk/poster we describe and illustrate recent enhancements to the package since the introductory talk at SciPy 2013, including: modular/pluggable interfaces for world coordinate systems, image file I/O and star and image catalogs support for rendering into matplotlib figures support for image mosaicing support for image overlays customizable user-interface bindings improved documentation self contained Mac OS X packages During the talk we will demonstrate the mosaicing plugin that is being used with several instruments at Subaru Telescope in Hawaii, including the new Hyper Suprime-Cam wide-field camera with 116 separate 4Kx2K CCDs. The talk/poster may be of interest to anyone developing code in python needing to display scientific image (CCD or CMOS) data and astronomers interested in python-based quick look and analysis tools.