oh right. I think the one I was looking for was by Maciej Kuciara, it was in the ImagineFX Sci-Fi and Fantasy magazine (just went on a search for it)
conceptartworld.com/wp-content…Yours is a very good likeness! Sorry I did not read the part saying you were copying it; maybe "original image by Maciej Kuciara" in the description might have helped? It was hard finding the artist as most people credit the image as 'found on Pinterest', but I got there in the end XD
More of Kuciara's work:
Good luck with your art, it's looking fantastic!