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Go to your settings page and add an COVER IMAGE URL there.
https://steemit.com/@uniquegem/settings

If you don't have your photo on the web, you can upload it to steemit.
Just create a new post or comment and insert your photo there per Drag'n'Drop to upload it to steemit. Copy the generated URL and insert these URL as the COVER IMAGE URL in your settings page and click UPDATE.
You don't have to post the created post/comment, you can CANCEL it.

Vielen Dank ..das is wirklich ein guter hinweis....ein schoener post uber die profil einstellungen wuerde die newbies wie mich helfen...gruss @ilium

Thanks again
That was just what i wanted to ask. Ive just powered up as I was told it was a good time to buy steem, so can upvote your tutorial!

THIS comment really made me feel dumb and empowered at the same time haha - I can't believe I never thought of that :) Awesome blog - the picture reminds me of the windfarms we have here in New Zealand!