Sorry to sound like a broken record about these issues, but please, you must ask permission before taking my artwork, "editing" it and sticking your signature on it. It is ABSOLUTELY NOT TOLERATED.
Whilst I feel I'm pretty liberal about sharing, unauthorised edits I'm not so fond of. It can obscure the artists original intent and context and as such, I think it's very important you ask first before you post it somewhere.
And yes - Even if you add the source, you have to ask permission.
Thank you kindly
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