My surface's touch screen doesn't work so I had to draw everything. My 8 trends include
1. Finger numbers
2. Facial Expression
3. Arm Position
4. Size vertical
5. Size horizontal
6. Pattern
7. Number of curls
8. Arms number

The number of fingers, arms and curls increase my group number. The facial expression continually gets happier as it moves down until the noble gases. The arm position, similar to number of fingers continually moves down. The size gets smaller when you go down in periods, and the size gets bigger when you go across by group, and the pattern stays the same within the group.