Hi Nadia,
Welcome to emails in Marketo 😉
I can't see the screenshots you've posted, but the answer is no - unless you edit the HTML and don't use the WYSIWYG editor. As a basic rule, responsive templates should always be edited in code in Marketo, unless you spend the time to really lock them down in a way that Marketo can't add damaging paragraphs and spans to everything.
Bigger clients generally make templates per email (including all copy and imagery), import that, and use it (no edits). I find that smaller clients generally steer clear of responsive design in emails for this very reason.
Marketo are in the process of building new responsive-friendly landing page and email editors, so I'm told - which will be amazing.