10 lines * 10 points, then 5 lines * 10 points - 5 points for crossing star lines (inner), then 5 lines * 10 points - 5 points for crossing star lines (outer), then repeat for 5 outer corners with 3 lines * 10 points - 6 points for crossing 2 star lines with each line

Then I hit the minute limit. So total score of 100 + 45 + 45 + 5*24 = 310.

How'd you do?