do you think these are different strains?

please, please look at these photos and tell me if they look like different strains, or if they're just developing differently. Thanks!

the leaves on the far-right plant seem to be a tiny bit more 'indica' in appearance, but it's quite normal to have a small bit of variation ...

they look really similar, probably just the difference from one plant to the other. even the same seeds/strain can have slightly or more obvious differences

same strain....don´t you have a brother ?
they are like you but quite not like you.