OK, that is 2 fast attack choice. Also, I've put some miniatures on the bases to add the 5 bonus points. So I'll count only 3 sentinels and do not detail the miniatures on the bases (I wont count separate points for the lens of the infantry, as an exemple).
edit : the green #2 have its front lamps painted (right after making the pictures)
Standard Painting Points
Walkers/ Creatures – 5 points each => 15
Challenges
Icons/ Symbols/ Marks – 1 point per model : => 3
Eyes/ Lenses/ View Finders – 1 point per model => 3
Walker/ Large Monsters/ Vehicles/ Chariots Details (accessories) and Freehand – 5 points per model => Not sure on that one
Targets
Meeting Deadline – 2 points => 2
Beating Deadline by atleast 24 hours – 2 points => 2
Detilled bases : 5 pts
Total is 35 to 50