Venus is a free Tumblr theme that features beautiful social icons where you can link to your social media pages. You can also change your blog avatar, which comes in two styles, namely square and circle, out of which you can choose one as per your likings. This theme comes with the option to use the advertisement banner with a hyperlink in the sidebar area. Also, this theme features options for custom colors of the text, background, and links. This theme is fully mobile-friendly and retina ready. Also, you can add your Instagram feed using this theme just by pasting the Instagram access token in the options.