Beautify a Website currently using Divi Wordpress template.

Beautify a Website currently using Divi Wordpress template. [login to view URL] I have a website, but it now looks not so professional. I need a freelancer to make it look much better. The structure of the site is already agreed on. Things need to be fixed include, but not limited to, as follows, The language needs to be all in Thai, but there are some English words found like "comment", "more", "Date of Post", "older entries", etc. I would like to change them into Thai but I do not know how. I also want to replace custom Thai font for headings and paragraphs. The Tahoma font does not look pleasant. The cover photos on the home page need to be more beautiful. I have photos to be shared so that the freelancer can use their graphic design/photoshop skills to make it more interesting.