The first one is a background from that book that is ONLY background, but I love the colours and the textures that I got playing with palette knives. The lightbox set up really captured the blues and greens well, I think. I dusted off my Wacom tablet to draw the fish in Photoshop. I'll have to do that more, because I'd forgotten how much fun that is.
This one started out as pan pastels, which I then painted over with clear medium, collaged on some nice paper, added some washi tape around the edge and sketched the birds in white gel pen.
And this one is so mixed and from so long ago now that I don't remember all the steps. o_O