Courtyard Sale - find 16 equations

I have found 15 equations, but cannot find the last one. I do not have any more hints available.

I have spent a lot of time on this one puzzle and need help to find the last item. Where can I get help?

iluvgmes, welcome to the forums. Have you found these:
1) in orange light on side of spaceship
2) circled around spaceship "gun" beside robot
3) bottom left corner of car
4) vertical on main tree trunk

Thanks for the help on the equations! I need one more in Atia's Courtyard. GOING blind looking for it!

I need help with this scene also. The other one is on the beach scene place.

Please, Please, help .

sherry

I need help in the same area atira any news

have you found these?

the one on the blue cloth
two on the path
on bottom part of the statue on the left
there is one on the edge of the table, almost in the middle of the screen
one on the left pillar

hope it helps

ive got one left in atia's courtyard, checked all suggetions and it driving me batty any more ideas??
thanks