From the gallery page.
From the admin area photo gallery > add new
1. Add a title for the gallery
2. Add a featured image. This is the image that will show on the man gallery page.
3. Set the date.
4. If you have already created a page and added a gallery to it you can use this option to link to the page. If use this you'll just need to select the page the photos are on no need to add the photos here.
5. Click add to gallery and select all the images you'd like to add to the gallery.
6. Click this tab to add a custom header image for this gallery. Otherwise the default header image will be used from gallery settings.
Add your logo in the admin