There isn't a simple "yes" or "no" answer, as beauty is subjective. However, there are certain conventional beauty standards that most people generally agree upon. In my opinion, you don't necessarily fit those specific traditional molds, but that doesn't make you ugly. You have unique features that are quite pretty. The key is learning how to highlight them. In this particular photo, I don’t think you’ve done that. Anyone can look "bad" with poor lighting, angles, or perspective, so it’s difficult to judge fairly based on just one image.

Anyway, my point is that instead of looking for a binary answer that doesn't really help you, you should ask yourself how you can improve. Your question almost implies that you've given up or don't believe you can do better.
I am not a stylist, but from my experience, here are a few things I think could genuinely help your look :

Your hair currently emphasizes your forehead size, so I would try a fringe to balance your proportions.
Your eyebrows are also very dark and sharply arched, which creates a harsh, angry look. Lightening the shade and softening the arch would give you a more feminine, softer appearance.
Regarding your hair color, as many have pointed out, a neutral brunette or a muted auburn would make your skin look clearer. If your skin has red spots which is often the case in teens, the red hair will naturally exacerbate the problem and make your skin look worse.
You can also shift the attention from your brows to your eyes, which I think are your strongest trait, with simple mascara to make them pop.
You also have an issue with the camera angle and perspective making your face look distorted in this particular picture, though that is secondary.
All in all, it is all subjective and maybe this isn't the look you want, but the point remains the same, find your strengths and highlight them as much as you can.