CSS in Email template

Hi All,

I'm having issues with a template I had converted from Photoshop design to HTML.
The freelancer who coded it did not add the css inline. I asked why and they told me that this would affect the responsiveness of the template.

Is there any option to make a good responsive template of it?

Attached the files.

Really hope someone can help me..
Here is the template: http://lucasjq84.eightyfour.axc.nl/mail/ (i can't attach it, appears there is something wrong with the attachments option)

Kind regards,

Lucas