Q:

Problem of article

This pure __ environment makes an effect on __ walker's health and mind, when __ man enjoys __ beauties and solemnity of __ nature in __ morning.

What would be the articles in the gaps?
My assumption:
  ×  ,  a  ,  the ,  the ,  × ,  the.
Therefore: 

This pure environment makes an effect on the walker's health and mind, when a man enjoys the beauties and solemnity of nature in the morning.

A:

Here's what I think is right as for articles in this sentence:

This pure (-) environment makes an effect on the walker's health and mind, when (-) man (I would say one in this case) enjoys the beauties and solemnity of (-) nature in the morning.

