It is possible to alter the look and feel of your galleries with Huemn's gallery layout settings.
You can easily change grid style, thumbnail size and grid spacing with these settings.
Click on any gallery you wish to change the layout settings for
On the left side of the screen, find the Gallery Settings option
Navigate through the Layout Settings tab to fix the look and feel of that gallery.
The grid style can be changed to vertical or horizontal
The thumbnail size decides the size of images in one glance
The grid spacing lets you space your pictures close by or far off