Seek help for space groups in 2 dimensions Bravais lattice

[harmonyU]

Dear experts,
I'm not familiar with crystal structure theory. I'm seek expertise to figure out space groups in 2 dimensions Bravais lattice of the attached structures. In the figure, red and greens dots represent different atoms. I'll greatly appreciate your help.

Struture 1
https://www.physicsforums.com/attachment.php?attachmentid=55823&stc=1&d=1361080231
structure 2
https://www.physicsforums.com/attachment.php?attachmentid=55824&stc=1&d=1361080249
structure 2
https://www.physicsforums.com/attachment.php?attachmentid=55825&stc=1&d=1361080249

 

[Dr Transport]

do you see any symmetry planes?

 

[harmonyU]

do you see any symmetry planes?

Thank you men. I'm not familiar with space group in 2D bravais lattice. Can you give me your expertise answer?