My first attempt at felting

The postman came with some of the yarn, that I have ordered for my felting project, today.
The yarn is called Schurwollkammgarn, colours 193 and 198.
I crocheted 10 rows of 10 half double crochet stitces (5 rows of each colour).

This is how it looked before it got felted: And this is how it looked after I felted it in the bathroom sink:

The piece went from 9x11 cm to 7.5x10 cm. Now, I just have to do some maht to figure out how many stitches and rows I have to do to make a bag.