Hi guys! here is alink to the fan-art in Imgur. I'm sorry I couldn't post it directly but I was having problems with uploading it. I hope you enjoy it. It was done with Photoshop and includes all MCU heroes including the Avengers, the Guardians, the Defenders and even a certain Inhuman somewhere in there... You might find it similar to another poster, the Star Wars The Force Awakens poster, because I used said poster as a base, replacing the SW characters with the MCU characters.
http://imgur.com/a/RpOgV