Each image is 5.4'' across with a pixel scale of 0.08'', and arbitrary colouring.
The star used to correct tip-tilt is shown on the left. From the upper open loop image the seeing is estimated to be 1.1'', and the lower image shows that when the loop is closed on the laser (pointing halfway between the star and galaxy) the resolution improves to 0.4''. The peak intensity also increases by a factor of 2.5 in the closed loop image.
The right-hand set of images show the effect on a compact HII region in the galaxy and the galaxy's nucleus, which are both 41'' from the star. The HII region still has a stellar appearance and is unresolved (with a diameter probably less than 50 pc). The closed loop image of the nucleus shows that it is completely resolved with a diameter of 1.8'' (560 pc).
The image below of the profiles (intensity cuts along the x-axis) through the star, nucleus and compact region clearly shows the increase in peak intensity and improvement in resolution (FWHM given in pixels).