Thank you for making this class and prompting me to explore once of the most watercoloury of watercolour effects! :)

I actually keep a sketchbook where I take notes on watercolour knowledge and techniques. Here's notes from another class where I included granulation:

I even have a spread on opaque watercolours, but never even thought about looking more into granulation. So, I totally took that idea and ran with it.

First I made an overview of granulating colours (I hope you can read the headings):

Then I mixed granulating and non-granulating colours:

Then I made my own supergranulating colours by combining two granulating pigments (one side is mixed, the other is glazed - both give different, but equally lovely, effects):

Then I tried out the effects of water, first the amount:

I feel that a medium amount of water brings out the most granulation.

And in more detail, dropped into non granulating paint at various consistencies:

Then I tried out the effects of salt, in comparison with non granulating paint. (Sorry, I'm a researcher. And a German)

I also tried out other effects (left column is using it as paint water, medium dropped into wet paint right was prewet):

Some other effects (including Schminke Spray, I don't have the granulating medium by W&N) and techniques:

Above was paying blowing. The red is non granulating, the blue is PB29.

I also tried out different papers:

I started trying out different kinds of water, but I'm not done, yet. There's still many kinds of water I want to try out (such as well and lake water). I'm super amazed at the effects with distilled water:

And finally the final project:

Luckily, I got myself a Daniel Smith Jean Haines set for Christmas (2 years ago and never touched ''em), so I had lunar blue. I used cobalt turquoise by schmincke for the lighter colour. I'd bought that as a single tube a while back, because he colour is just gorgeous. I didn't have a granulating violet, but moonglow looked so nice...

Anyways, that's how far I got. Will update when I make it to the well (and manage to smuggle some chlorinated water from the swimming pool). ;)

Addendum:

I swatched some more:

and then made up my own experimental project, because I'd squeezed too much paint out of the tube and had to put it somewhere:

 Also, a mixing chart of the Jean Haines' master set. The mixes really enhance the granulation:

I then mixed the set with my regular granulating colours:

and regular paints that seemed to fit well. Mostly blues, because there weren't any in the set (so I got really nice granulation going with blues):

I also tried out salt on the Jean Haines set and on my normal granulating colours:

I realized to what extent salt enhances granulation, and have put it on everything from then on.

I also tried out the Schminke granulating spray. On the Jean Haines' colours:

My run-of-the-mill granulating colours:

and all of my non-granulating colours:

I'm not quite sure, if I like the effect.

Anyways, I did the same with undiluted W&Nb granulating medium. First granulating colours on one page (bottom row is schmincke galaxy):

followed by, again, my non granulating colours in the same order:

It totally enhanced granulation in already granulating colours, but not much happened to the non granulating colours (and I splashed more medium into the colours plus salt)... Also, half my bottle is empty after these two pages. TT--TT

My current project is mixing the Schminke granulating colours with each other (my goal is to own the complete set). First the urban set with itself:

urban x galaxy

urban x deep sea

urban x glacier

urban x tundra