Help, WP is thumbnailing my embedded images

Hi,

I am putting some custom paypal buttons on some pages on my WP as CMS site.

For some reason I can’t figure out, WP is not putting it in the page in full size, it thumbnails it and puts a frame around it. I looked at my settings and can’t see how to turn it off.

I would like to ask how to have WP display the full image without the frame for these, and perhaps future images only?

Can I have theses ones appear like the way they should, yet on my posts and perhaps other areas of the same page, have my images framed and thumbnailed IF I choose to (there must be a way to choose to do this or not).

My images are either from external links or uploads. The theme I am using is Thesis 1.5.1.

A link to a page example is here (scroll to the bottom for the red buttom):

https://happysexyyou.com/coaching-programs/personal-coaching-on-the-art-of-meeting-men/

Any help is appreciated.