The fit may not be your style of work but more your attitude or the way you present yourself (im not saying this is true as i dont know you or how you come across but putting it out there as a alternative to it being your work). So many times I hear designers say they didn’t get the job and everyone immediately goes to the portfolio. Keep in mind the hiring process is more then just about your raw talent…
How are you going to fit in with the exiting team
Are you confident or cocky (this one is a fine line)
Are you a go getter / passive / or overly aggressive
Are you a team player / or is everyone on your team just dragging you down (actually had a designer tell me once that every team he had been on just prevented him from creating good designs.
These an many more things are being evaluated of you by the hiring manage above and beyond just your id skills and portfolio