Looks easy

I've been sewing today and the daylight disappeared before I noticed, too late for blipping.
The members of the quilt club are each to make three or four of these pieced squares. These will then be put together into a large quilt and then raffled in aid of charity. The trees are different bright fabrics and the backgrounds either black or white. The design is simple but I am out of practice with this type of sewing and was frustrated at the amount of unpicking I had to do on the two I have made. Hopefully the next one will go more smoothly!