Hi Aaron,
Go to live customizer : Appearance -> Basic settings
Upload banner image of your choice using the logo uploader, it must be of 1040px in width.
After that paste the following code in the appearance -> editor -> custom.css in the very end after everything
.themonic-logo {
margin: 0;
padding: 0;
}
.themonic-logo img {
max-width: 100%;
}
.entry-content img, .comment-content img, .widget img, img.header-image, .author-avatar img, img.wp-post-image {
box-shadow: none;
}The last part removes the image shadows that were not looking good on your website. Do let me know if it works as you have wanted.