hi! i'm trying to change the picture in the about me page. i installed the "main demo" from the content installation and the picture is missing, i thought i could simply replace it, i was able to edit and change all the rest of the content, but ere the picture is there is a lot of code but no way for me to add the image.

can you guide me to find within the code or where to add a new image?

this is what i see before the content:

[vc_row][vc_column reveal_effect="fadeIn" reveal_duration="0.7" reveal_delay="0.1"][lab_heading title_tag="H1" title="about me."]everyday I have to create something, I love what I do!
here's who I am, what I do and my social networks, connect with me.[/lab_heading][/vc_column][/vc_row][vc_row][vc_column width="5/12" reveal_effect="fadeIn" reveal_duration="1" reveal_delay="0.3"][vc_single_image image="4031" img_size="full"][/vc_column][vc_column width="7/12" reveal_effect="fadeIn" reveal_duration="1.5" reveal_delay="0.5"][lab_scroll_box scroll_height="600" css=".vc_custom_1484151031142{padding-top: 30px !important;padding-right: 15px !important;padding-bottom: 45px !important;padding-left: 45px !important;background-color: #161628 !important;}"]

thank you!!