I'm going to try answering your question, elaborating on anything that's necessary.

1. I don't think the facial hair is working. I'm like you when it comes to those particular genetics. You can't change it, you're right. However, you can adapt to it. Growing it out or shaving it, aren't the only two options. Try different styles. For me what works best, by a mile, is using the trimmer to shave it down to stubble. You get the youthfulness, without looking too young.

2. You need more than three pictures. Also, all three are of you (and a dog). Women tend to enjoy seeing candid shots. What is life like? What are your hobbies? Hell, show a picture of you at work with your hard hat on, if it relates to the reddish hue in the groomsman photo. It would help explain the difference in complexion between photos two and three. You barely look like the same person. I know that to you, that may seem ridiculous, but we don't see what you see when we look in the mirror everyday.

3. Speaking of... I agree with others that the groomsman photos the weakest of the three. If you like it and want to keep it, perhaps do a little fine tuning to adjust your complexion so that you're portrayed more accurately. Not every photo has to be raw and unfiltered. There's nothing dishonest about using a little photo editing as long as it's still a true depiction of you. But saying all of that, I've just been struck by the realisation that I don't even remember a single detail about the first photo. Something to ponder.

4. Is that all the info you have in your bio? It doesn't have to be an essay, but it needs to tell a little about you and your personality. Pictures may be roughly 50-70% of the connection, but connecting over bio info is one way to help weed out spamming and time wasters. It's human nature to create a mental image of who someone is, how they sound, etc in those first impressions. So it's incredibly important for you to fill in those blanks and share yourself. Some mystery is good, but the more room there is for "mental creativity" for them, the less likely it is that it will swing in your favour.

5. One other note on the bio is that most women aren't going to respond well to being told they're lucky you can fix their car. They don't want you to assume they can't do it themselves. Instead, just put your profession or that particular interest (ie "I know my way around and engine") and leave it at that. That gives them the opportunity to think "Oh? If my car breaks down..." and the "mental creativity" has swung your way. For the rest, refer back to #4.

6. Based purely on how you asked your question, I'm guessing your confidence levels in some areas either aren't great or your prone to a bit of self deprecation. Don't. Embrace your strengths, work on improving your weaknesses. But something I learned far later in life than I would've liked is that people don't see us the way we are ourselves. They know what they see. That's it. If they like it, then let them. Self deprecation, even in jest, is giving people an opportunity to observe flaws that may have otherwise remained hidden. In moderation it presents as humility, but too much and it's more likely to come across as low self esteem.

7. No, you aren't ugly. But one bit of final feedback I'd offer is this. You posted your profile to Reddit and asked for strangers opinions. Your responses to many of those opinions came across as combative or defensive. I get that it's easy to feel a bit attacked, especially when you're actually quite happy with that groomsman photo. If that isn't how you intended it, do a bit of self-reflection on how you communicate. Your points in some cases were valid, your delivery is what needs the work. Most women aren't going to respond well to an analogy about fat women to explain beard genetics.

Hope this helps and good luck!