Dye from L to R (2nd pic):

royal blue;
royal blue with more water;
phtalo green (perhaps a bit teal? Made with royal blue with lots of water and half a pill of Easter egg dye);
green as grass (made with royal blue with lots of water and a tiny drop of bitter lemon/lime).

Basin filled with snow and sock blanket underneath at 11 am, typing this at 7 pm and there is still some icy part, so tomorrow all will be revealed.
Fingers crossed for… hmmm, no idea what to expect we’ll see. So fingers crossed for being able to nuke it in the microwave and being able to share.