From Website:

You can register as an artist going to our home page and pressing the orange button “Become an artist”. After the artist registration is completed, you can go to the home page press the button up on the left "add new artwork”.

From Mobile: 

You can register as an artist going to our menu (1) and pressing the button “Become an artist” (2).

After the artist registration is completed, you can go to "My Collection" and press the button “Made Artworks” to find the orange button “Add Artworks”.

From iOS App: 

You can register as an artist going on “My collection” (1) and pressing the button “three squares and a +” up on the right (2). Here you can insert all the information required to become an artist.

After the artist registration, you can go to "my collection" and press the same button up on the right to upload your artworks.

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