Hi Ronny,

Thanks for contacting us regarding your query.

You may use the following Custom CSS Code to accomplish this request. 

/*Removes the Social Icon Container*/
.single-portfolio div.col.span_3.col_last {
    display: none;
}
/*Removes The All Portfolio Items Element*/
.single-portfolio #all-items a {
    display: none;
}
/*Removes The Next Link Button Text*/
.single-portfolio #next-link a {
    display: none;
}
/*Reduces The Height Of The Page Wrapper To Bring The Image Up*/
.single-portfolio div#page-header-wrap {
    height: 210px !important;
}

You may add this to the Custom CSS Code section located by navigating to Appearance>General Settings>CSS/Script Related>Custom CSS Code from your WordPress Dashboard.

Please let me know if there are any more questions that I may answer for you.

Cheers! 

Hey Again,

Add this into the Custom CSS box located in your Salient Options panel (Make Sure there are no red cross in the Box) :

#portfolio-nav a i, #portfolio-nav a i,#portfolio-nav #prev-link a, #portfolio-nav #next-link a {
    color: #b5873d !important;
}
.bottom_controls #portfolio-nav ul:first-child li#all-items a i {
    background-color: #b5873d !important;
    box-shadow: -0.5em 0 #b5873d, -0.5em 0.5em #b5873d, 0.5em 0 #b5873d, 0.5em -0.5em #b5873d, 0 -0.5em #b5873d, -0.5em -0.5em #b5873d, 0 0.5em #b5873d, 0.5em 0.5em #b5873d;
}

Thanks