I did the exercises with a different worksheet, a single sheet with circles of 9-10 cm diameter.

I tried a variation of the blossom and did it with poinsettias (Christmas flowers) but I found out it is better to use simpler shapes that are symmetrical, and struggled a bit with the poinsettias. But in the end, this was my favorite exercise.

I also enjoyed doing the stars but I didn't liked much the end result because I used a thicker nib size.