The problem I see is that while your shots are good, there is no indication of what you would do professionally. There is no significant market for what you show in your portfolio and no indication of what you would do on assignment. The higher-paying (if it can be called that) of today's professional photography is fairly mundane, time consuming, and requires skills not mentioned above, particularly patience when shooting and speed when processing.
I made more money doing real estate photography than sports photography, live concert photography, or portraits, all of which I liked more. It paid extremely well and I had no deadbeat clients. But it was boring as it could be, it often involved waiting, and it required really fast turnaround. Sports required far more waiting and much more intense turnaround, a hundred shots processed for the web by 2AM after getting home at 12:30 (typically). Portraits, well, there were people that never showed up, people that didn't pay the remainder and wanted photos, etc. etc. I also did corporate events - conferences and that sort of thing - and while that had no payment problems, it was also quite boring and clients wanted fast turnaround.
The problem a lot of people who enjoy photography find when they look at becoming a professional is that other than using a camera is little connection between the personal enjoyment activity and the professional activity.