Roman Price commented:

Click 'Acount' its in the top right corner of your screen

then click "edit/change photo

You can upload the photo there

And for the video just copy and paste the youtube or vimeo link into the video link section of your post :)

Melvin Fajardo Veneracion commented:

hi...welcome here... kindly subscribe me...thank you... :)

Roman Price commented:

thanks for posting in the community, great stuff.

Your friend,
Roman