One of the main differences is that ...
In the first photo ..., whereas in the second ...
One of the main differences is that ...
The photos are similar because ...
The photos are similar because ...
In the first photo ..., whereas in the second ...
One photo is ... than the other one.
One photo is ... than the other one.
In both photos, ...
One similarity is that ...
Both photos show ...
Both photos show ...
One similarity is that ...
One of the main differences is that ...