With our widget "Image Gallery" you can easily create a nice gallery for your website.
Go to content editor on the page, where you want to put a gallery. Open the tab "Widgets" and click "Image Gallery". Then select a folder with images from the dropdown list (how to upload images to your website you can find here). Choose the options for your gallery.
See video here - http://www.seotoaster.com/how-to-add-an-image-gallery.html