Describing pictures

The photos are connected with (the topic of)......are to do with ......are linked by ......relate to ......show different aspects of ...

The photos are connected with (the topic of)......are to do with ......are linked by ......relate to ......show different aspects of ...

Speculating

It could be that ... or ....It´s hard to say whether ... or ....I would guess that ...

DeducingFrom their expressions, I´d say that...Judging by her expression, I´d say that...It´s clear from their expressions that....It looks as if they ....They look very annoyed, so clearly ...

It could be that ... or ....It´s hard to say whether ... or ....I would guess that ...