Small job on Wordpress website

I have an established Wordpress website and I need the following changes made:
Remove two of the existing pages;
Change wording on home page (delete some text and add different text);
Change name of 2 pages;
Make it clearer which of the 2 areas in the gallery you are in (eg put a box around the selected page);
Make changes (if possible) so that landscape photos fit onto mobile phone screen neatly.