Hi,
1. Travelo theme has not option to change footer images.
You can use following css code to change those images in theme options panel.
#footer.style2 .footer-wrapper > .container:first-child:before {
background-image: url(../images/footer/balloon.png);
}
#footer.style2 .footer-wrapper > .container:first-child:after {
background-image: url(../images/footer/island.png);
}
http://prntscr.com/nfk0q4
You should change image url in css codes.
2. Travelo theme is translation ready and you can change some texts using language file in Travelo theme.
Please check http://soaptheme.net/document/travelo-wp/#translation
Regards, C-Themes