Thanks for all your ID-ing work on these Heino. While I find lichens fascinating and often beautiful, I know nothing of their taxonomy. This helps and makes a start...
Some lichens are easily identified to species just from a photo, others to genus just from a photo and many for which little can be said from a photo alone. Often a lichen expert (which I'm not!, my interest is fungi) might be unable to say much from a photo, but could tell you genus or perhaps even species if they could have a quick look at a specimen with a hand lens. There may be features that show up at say 10x magnification but which would be hard to show in a photo. But there are still many where a microscope or chemical test would be necessary. You may want to have a look here - http://www.anbg.gov.au/abrs/lichenlist/introduction.html. From that page there are all sorts of links, some definitely only for the specialist, others of general interest (e.g. Recent Photographs (2010–2014) in which you see a great variety of lichen forms). If you rummage through those links, you'll quickly see those that are of interest to you and those that are not.