Take the next instrument to make two circles of white color and apply the next instrument to represent over them a line colored in white, like in the next picture.





For your convenience, merge down all the layers composing the white line, the two circles and the pins in a group.
Copy the new made group 7 times and make use of Free Transform selection to place them out like in the picture below.



Make several more pins, like it is demonstrated in the picture below.



Take the next instrument and represent two ellipses with next parameters.
Fill 0% on the layers.
Blending Options-Stroke





For your convenience now, merge down all the layers composing the snowflake in a group. Copy the new created group 7 times and apply Free Transform selection to minimize it, increasing it on turning around where it is necessary. Place everything out like in the picture below.



Finished!