I'll piggyback off of Chris and say that if you have access to a graphic designer, maybe you could have a cover for the report created that is a bit more visual and appealing and then insert that either along with the button (but make the image clickable, too) or just on its own. You could also get away with using the first page of the document turned into a JPG or PNG file, but it doesn't have a lot of visual flair.
Maybe even include some additional copy in the email itself that highlights some of the major talking points within the PDF.
I'd also recommend moving your logo to the very top of the email and making it clickable to your website. I'd also include additional information at the bottom like you would see at the bottom of a website (it would include business name, contact information, social media if you have it, maybe a smaller version of your logo).
... View more
