Sentence restructure

It is not clear what you mean by 'better' here.

This can sound more polite.

Please make an album of some big and small pet and wild animals.

haroon rashidFind pictures to make an album of some big, small, pet and wild animals.

I'm not sure of the context, but this might work.

We are going to make an album of animal pictures, so we need to find pictures of animals. They can be big or small animals, and they can be pets or wild animals.

CJ

CalifJimThey can be big or small animals, and they can be pets or wild animals.

I think this instruction tells they have a choice. So can we say this?
They need to be small and big small animals.

vsureshI think this instruction tells they have a choice.

I didn't take it that way. That proves that there wasn't enough information in the question to formulate a good answer.

vsureshSo can we say this?They need to be small and big small animals.

Yes. That may, in fact, be what the OP wanted. If we get a reply, we'll se

Thank you, CJ.

Yes, we can inlude animals of our choice but it would be better if we include all types

haroon rashidYes, we can include animals of our choice, but it would be better if we include all types.

We are going to make an album of animal pictures, so we need to find pictures of animals. Try to include big animals and small animals, wild anima