For what it's worth, my Responsive web sites don't look so good in Design View either. I use Split View with Live View to edit them.
Yes, you have a few errors. Namely the ones in bold.
line 12 column 108 - Error: Bad value description for attribute http-equiv on element meta.
line 72 column 76 - Error: An img element must have an alt attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
line 165 column 54 - Error: The align attribute on the table element is obsolete. Use CSS instead.
line 167 column 50 - Error: The width attribute on the td element is obsolete. Use CSS instead.
line 168 column 26 - Error: The width attribute on the td element is obsolete. Use CSS instead.
line 169 column 49 - Error: The width attribute on the td element is obsolete. Use CSS instead.
line 214 column 144 - Error: Attribute bordercolor not allowed on element td at this point.
line 214 column 144 - Error: The height attribute on the td element is obsolete. Use CSS instead.
line 214 column 144 - Error: The align attribute on the td element is obsolete. Use CSS instead.
Nancy O.