It's not from scratch, you duplicated a layer by hand. Technically the result is respectable, if it's painted (GDSE's image server imgur cannot keep the high resolution version, which flattens the appearance). To get something as perfect with a brush, my brush should be the cloning brush and I should apply posterizing or indexing or some simplifying filter to reduce the number of colors.
What's missing: You haven't build a model of the object person between your ears, you copied his image. You should get to next level, add something that you think to present his essence, the spirit, strongerly than the photo.
Of course all that is easy to write (especially easy, if it was red from the writings of someone else). But that's also my opinion.
I do not recommend you should detoriate your technique to somehow coarser, for example to simulated pen or brush strokes. Try instead of it to express more, something that wasn't in the photo. After it you probably see, that also coarser textures can present, what is your own input.
If you didn't get a slightest idea what I mean, then watch this:
The legal thing:
This is complex. There are some photos which are unconditionally free to distribute as is or after making variations. For ex. photos in public domain are free. The photographer and the model can also have declared the photo freely usable.
If there's no documents which prove the photo freely usable, you must have a written permission which shows that the copyright owner allow you to make the variations and distribute them. If you haven't it, be sure that you do not show, sell nor give the result to anyone. It's your duty to prevent others to get or see it.
If it happens that the owner of that face (=Walter Kamau Bell or his agency) and the original photographer (=J.Nowak or his agency) still haven't written the permission, you surely take some risk by keeping this image in marketplaces. It's not at all sure if showing it here is fair use.
Warning: I'm not a proper lawyer, do not keep this writing as a legal advice.