✿ watercolor paper
block (tip: if you don't work on block and use only paper, stretch it, otherwise it will curl. More tips > WATERCOLOR PAPER GUIDE
no.10 & no. 4 round sable (used for most of the painting), no. 2/0 (I didn't use pen during this painting, I tried not to rely on anything but this last brush when working on details)
(I used liquid watercolor Ecoline for this painting)
✿ white ink
For more tips on materials, see detailed articles written for %projecteducate Artist's Toolbox: WATERCOLOR EQUIPMENTArtist's Toolbox: WATERCOLOR EQUIPMENT II, Additional Tools
Any further questions I will gladly answer, please let me know if this tutorial needs corrections or is not comprehensive enough.
▲ Please note that this might not be the most perfect or proper way of how to approach watercolor painting, it is merely an explanation how I worked.