Am I balding? (Photos)

These are great pictures. You have not developed a mature hairline yet as you have maintained much of your juvenile hairline, but there is a suggestion in the corners that you may be moving your hairline up in the direction of a mature hairline so this may not be balding as you may be transitioning into a more mature hairline. A hand microscope will help to see if you have miniaturization in these corner areas but wait this out as time is the best way to know. I rarely see men in this transition stage, so thanks for sharing these photos with me. Contact me in a year and repeat the photos, then we might know the answer to what is happening to you.  The arrows show both the juvenile center of your hairline and the changing corners.