I want to change the image on each single service page. So that they are diffrent from eachother. By default they are all the same. 

See the code below. It is by default:

[vc_row img_halfrow="yes" halfrow_image="54" img_columns="6columns" img_position="imgleft"][vc_column offset="vc_col-lg-offset-7 vc_col-lg-5 vc_col-md-offset-7 vc_col-md-5" css=".vc_custom_1474964179736{padding-top: 40px !important;padding-right: 55px !important;padding-bottom: 40px !important;padding-left: 55px !important;}"][menuser title="Braids & Twist" price="$35"][menuser title="Clipper Cut " price="$5"][menuser title="Color Rinse " price="$5"][menuser title="Corrective Color " price="$15"][menuser title="Extension Per Track " price="$10"][menuser title="Full Foil" price="$10" sale="true" number="10%"][menuser title="Haircolor " price="$15"][menuser title="Haircut" price="$9"][menuser title="Hair Extension " price="$45" sale="true" number="5%"][menuser title="Kids Haircut " price="$5"][menuser title="Partial Foil " price="$25"][menuser title="Thermal Add On" price="$20"][/vc_column][/vc_row][vc_row css=".vc_custom_1476155305643{padding-top: 30px !important;padding-bottom: 30px !important;}" el_class="bg-color"][vc_column animate="fadeinleft" delay="0.5"][call icon="fa fa-phone" title="Contact us now and get special offers!" linkbox="url:http%3A%2F%2Fdemo.oceanthemes.net%2Fmodis%2Fappointment%2F|title:Make%20Appointment%20Now||"][/vc_column][/vc_row]