Consultant Theme – replacing consultant pic from top left of page

Hello,

new to wordpress and new to site origin. Downloaded and installed the ‘consultant’ them pack and love it! i’m wondering how I can replace the consultant pic at the top of the page with my logo or even just text with my company name, instead of having the consultant logo at the top left of the page? tried your youtube videos and even general wordpress help but cannot seem to find out how to make this change.