at viewport 1 (the green line on the left in the template) the menu is bigger/outside the template borders, make the menu smaller or move it a little bit so it is inside the template

same for viewport 2 (yellow line)

the pictures is a warning, not very importand, but it's best not to use very big pictures on internet because it slows down the website, so make pictures smaller with irfanview or another picture edditor, or leave it. I usualy set pictures no bigger then 1024 px on eather side and 16 DPI.

you could also choose to let x5 control it, step 1 advanced TAB -> website optimization -> image optimization set it lower, to minimum for instance.