What are the rules of making a hero concept / fan crossover?

[QatarVIX]

Besides the forum rules, concept art rules applies:

Important Note About Image and Art Posting

[a92eeb0dd778e7b5da84ceab1bc6c1884fb69147_2_690x84] One of the best parts of our job as developers is seeing all of the wonderful concepts and creations that our work inspires. Members of the Hero Hunters community have done a great job showing their support by coming up with their own Hero concepts and posting them in our Community Gallery. However, you need to make sure that any art and images you post are correctly credited and sourced. A lot of the concepts we see, while original, feature …