Asking questions about Japanese

Because Mr Matsumoto is a photographer, he often goes to Hakone-CHO (a Japanese place name) to look for materials.

わたしはさんたちのったを See たことがぁ.

The real はどのよぅにしてったのでしょぅか.

I have seen Mr Matsumoto's photographs. How do lifelike works come out?

What does なので in the first sentence mean if it is replaced by たので?

There is no meaning of because, but noun+なので is the correct continuation.

What did はどのよぅにして do ... What does the second sentence mean? An example of this usage?

Equivalent to English (HOW), so the distance is clear, right?

For example: そのはどのよぅにるでしょぅか?

What if that thing is artificial?

After typing so many words ~ ~ LZ, can you add a point? It's hard to say ~ ~