Removing Pin It button from about me photo widget

I’m a total newbie when it comes to WordPress, coding, CSS, etc. I have searched the forums and tried various tips (like changing the info in the img selector box) but to no avail. For the life of me I cannot figure out how to stop the pin it button from showing up on the about me photo on my site. The about me section is a widget that came with my theme. I’ve tried changing min. resolution multiple times as well. And I have no clue what, if any, classes are involved. Help please 🙂 My site is here: http://curatingcantrelle.com/
(it’s still new). Thank you in advance for your help!

https://wordpress.org/plugins/jquery-pin-it-button-for-images/