I would say that for a first portrait it is far better than many first attempts.
Lets look at the positives:
1) You have a good tonal range throughout the image
2) You have chosen a characterful face as your subject
3) The use of black and white is a good one
A few pointers for improvement:
1) The image lacks a little sharpness in places. A little selective sharpening in post-production will help this.
2) It is a good study of a head, but does it show the real character of the sitter? Portraits, the best portraits, show something of the character of the sitter. Try to capture this next time.
3) The background could be darkened or smoothed, as it does detract a little.
4) Experiment with more dramatic lighting. Possibly try getting what is know as chiaroscuro
, which will add 'punch' to the image. This can be done by moving around your light source, using reflectors or masking the light.
As for the logo comment above, it is not constructive. It is not a case of protecting the copyright, it is more about putting your name on your image, as if signing it. Something which is fine IMHO.