They seem to be close to each another. - is it right here?

Question

There is a picture of a family. There is a group of 4 people talking to one another pleasantly. In this situation, can I say like this?

1. They seem to be close to one another.

2. They seem to be close all together.

3. They seem to be close to each another.

I think #1 and 2 are good, but #3 is not right grammatically because there are more than 2. Am I right?

Answer 1

Number 1 is good. It implies that they are not only in physical proximity, but also "close" emotionally.

Number 2 is not right, because we do not say "close all together". If you mean simply that they are grouped tightly in the photo, say:

• [in the photo] they are all close together.

You are correct that number 3 is wrong, but it is not because there are more than two in the photo. We simply do not say "each another".

Replace it, either with "one another" or with "each other".

• They seem to be close to {each other/ one another}.

Answer 2

The correct would be

They seem to be close to one another.

or

They seem to be close to each other.

To me personally, each other sounds better. Here is more about the distinction.