i agree with deity. ontop of artistic recognition, getting permission from the artist is just as important. the odds of getting in touch with the original designer could have turned into a dead end, i wouldn’t be surprised, but there would be no harm in trying. still, this isn’t an animation studio where you just take someone’s concept and model it. most modelers are concept artists as well as texture artists. to take someone elses work without permission and reference the artist in a nonchalant fashion is obsured! other people in this post have had to correct you and all you can say is, oh my bad. let’s say that you tried to get in touch with the artist, but couldn’t. you should have immediatley referenced the correct artist and made a new design expanding from the artists original design. you could then give him credit for being your inspiration. what you are doing now is not inspiring, it’s just lazy.