Brochure 1 adresses the tourist as the third party rather than using 'you' or 'Anda'. This brochure is more descriptive and less persuasive.
Brochure 2 is more persuasive than descriptive and using second person pronoun to adress the tourist and first person pronoun to adress the travel agency.
Brochure 3 is similar to brochure 2 using second person pronoun to adress the tourist and first person pronoun to adress the travel agency. It is also more persuasive than descriptive.
Brochure 4 using second person pronoun to adress the tourists but it is rarely used in the text. Unlike brochure 2 and 3, brochure 4 is more descriptive and less persuasive.