Mobile image too big

I'm pretty new to all of this so I need some help please. My first image on my website at www.marjeanneestes.com needs to be adjusted so it displays right on mobile. Would someone kindly help me? Thank you.

Add to Design > Custom CSS

/* resize mobile image */
@media screen and (max-width:767px) {
[data-section-id="6382dd6b40c0a045c0622855"] {
    min-height: unset !important;
    height: 30vh;
}
}