Translation of gauze in Spanish

It is a column header, the column itself has 2 buttons 'thumb up' and 'thumb down'... And I am looking for the title of the header. Then I want you to simply mark those words and sentences that are wrong or have typos.
Could you please read the following offers in a critical manner and confirm it before I will send it? I have also mentioned the warranty and the software in the offer, because it was requested by the customer.
Besides, what do you do for living? Where exactly do you live in Venezuela? Southern Germany is also very beautiful with the Alps. Can you understand my German? I would like to improve it.