I enjoyed this course.  I should have opened my tube of white gouache, but it was packed away and I decided to try a white acrylic pen, which was a mistake, as it blobbed all over the picture, didn't go on right, and looked a mess!  Learn from my fail, and don't use acrylic. Thankfully I took a before pic though so I have one of it looking better.  

I used Daniel Smith Watercolours and a Tavolozza Watercolor Pad in 230gsm, feels like hot-press as it's smooth, but it doesn't say.