To be honest that is a lot easier when you are drawing someone who already exists, it is a lot harder for when you try to compose something from scratch. (There are obviously guides but getting it right...)
I find it to be to other way around, very much easier from scratch.
Also, I believe this artist (though I don't mean to sound mean), just takes already-existing pictures and then copies them into digital paintings. So they can get the proportions right/shades, etc. Because everything that I have seen so far, I've seen the real pictures online. I'd really like to know//see what this individual can create from scratch, from non existing data. See if he/she can actually get the proportions right then, set a self-imagined pose, etc. As far as I am in awe at his/her work, in the end, this is just merely copying (again, not saying it is bad), but I personally prefer arts that comes from within, really, rather than take something that already exists.
I'm obsessed now too. I'm exactly like Sherlock in how I can analyze things that quick, but I stutter, so it doesn't always come out the way I want it to. It astounds me how fast he can talk without stumbling.
I love how much detail you added to this,even to the last wrinkle on his scarf and the detail on his coat Your details of the coat makes me realize that Sherlock always looks his best when he wears his coat ^^.
This most certainly is one of my favorite pieces of Sherlock fanart. I love Sherlock when he is standing just outside of 221B Baker Street. I can't get over the detail in the coat, and how detailed you drew his hair.
Another amazing work! As always, you have done a wonderful job with the eyes. The detail in the coat and the scarf, especially the end of the scarf, is impressive. I love the original photo, but I really would have a hard time choosing between it and this beautiful art. You really captured the expression well. Lovely work!