Dear Agatha,
Here’s what I’ve changed in your website:
1). Changed the gallery display code for the “Photography” page so that it only shows titles in the form of a list and not images. The tags above the list let you filter the images.
2). Added “Previous” and “Next” buttons to the gallery items, like e.g. here.
I can’t seem to find low-res images showing up in the gallery page – do they still?
I hope the end result corresponds to what you need ;) If something is still not right, do let me know!
Best,
Andrew | Satori