Useful expressions to the speaking

Expresiones útiles para comparar.In the first photo/picture there is/are...In the second photo...The first picture shows...And, the second picture shows...Expresiones útiles para contrastar.On the one hand, ... , but on the other hand, ...In contrast, ... Expresiones útiles para especular.Perhaps...I think...It seems...Maybe...Expresiones útiles para dar tus propias opiniones.Personally, ...I would like...In my opinion...Expresiones útiles para utilizar si te equivocas y quieres corregir lo que has dicho.Sorry, I didn't mean that, I meant that...Let me rephrase my idea...I take that back, what I really wanted to say...