juvenile Lestes sponsa or viridis

[Eiren]

Hello all,
can anybody help with determination? I know, thats female, but I am not sure, if is juvenile sponsa or viridis. Thanks for your opinions.

[alon]

for me L. sponsa - below pterostigma two cells.

[Aneta]

L. sponsa - two cells, black back of the head and short ovipositor.

[Eiren]

thanks both for determination ...