Hi redtexbu,

thank You for using Parvati!

The big image with the bricks is Your featured image. If You remove the featured image in the admin’s page editor, the image won’t be on Your front page. I recommend You to use Elementor page builder plugin for the pages. The demo on wpkoi.com was builded with that.

With the free theme You have to use CSS code to change the main color everywhere. You can add additional CSS in the customizer-> Additional CSS section.
A lot of element use that color, so You have to add the following code:

.parvati-side-left-cover,.parvati-side-right-cover{
    background-color:#e0a655;
}
.top-bar{
    color:#e0a655;
}
.top-bar a,.top-bar a:visited{
    color:#e0a655;
}
.main-title a,.main-title a:hover,.main-title a:visited{
    color:#e0a655;
}
.main-navigation .main-nav ul li:hover > a,.main-navigation .main-nav ul li:focus > a, .main-navigation .main-nav ul li.sfHover > a{
    color:#e0a655;
}
.inside-navigation .search-form input[type="search"]:focus{
    color:#e0a655;
}
.main-navigation .main-nav ul ul li:hover > a,.main-navigation .main-nav ul ul li:focus > a,.main-navigation .main-nav ul ul li.sfHover > a{
    color:#e0a655;
}
.page-header-blog-content h2{
    color:#e0a655;
}
.page-header-blog-content h2:before, .page-header-blog-content h2:after{
    background-color:#e0a655;
}
.page-header-blog-content .button{
    border-color:#e0a655;
}
.page-header-blog-content .button:hover{
    background-color:#e0a655;
}
.sidebar .widget .widget-title{
    color:#e0a655;
}
.footer-widgets a,.footer-widgets a:visited{
    color:#e0a655;
}
.footer-widgets .widget-title{
    color:#e0a655;
}
.site-info{
    background-color:#e0a655;
}
button,html input[type="button"],input[type="reset"],input[type="submit"],a.button,a.button:visited{
    color:#e0a655;
}
button:hover,html input[type="button"]:hover,input[type="reset"]:hover,input[type="submit"]:hover,a.button:hover,button:focus,html input[type="button"]:focus,input[type="reset"]:focus,input[type="submit"]:focus,a.button:focus{
    color:#e0a655;
}
.parvati-back-to-top,.parvati-back-to-top:visited{
    color:#e0a655;
}
.parvati-back-to-top:hover,.parvati-back-to-top:focus{
    color:#e0a655;
}
.parvati-side-left-content .parvati-side-left-socials ul,.parvati-side-left-content .parvati-side-left-text{
    color:#e0a655;
}
.parvati-side-left-content a{
    color:#e0a655;
}

Change the color code everywhere to Your selected one.
With the premium version, You can change all the colors in the customizer without coding knowledge. You can also disable the featured image display on the header, if You don’t like Elementor.

I hope it helps You to reach Your goal! Have a nice day!

wpkoithemes

You are welcome!
You can hide them in the basic page editor or modify the font size with CSS:

h1.entry-title {
    font-size: 50px;
}

Add this with Your size!