Yes, make your own wallpaper (1080P or superior usually, screen in-game allowed) and post it.
I am starting with this, vector logo and restyling of Little Ala Mhigo flag (Wacom + Illustrator CC) + editing (Photoshop CC).
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Afternoon
1920x1080
http://s3.postimg.org/x3ot31nxv/alamhigo_resistance.png
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Evening
1920x1080
http://s3.postimg.org/3n970mhkj/alam...ance_black.png