Please take this in the helping spirit it is mean to be. You need pictures. Not just "ok" pictures, not even "good" pictures, you need great pictures. The pics are your website are between ok and good. The pictures that are shown on social media sites have to grab a viewers attention and stand out. Knife people, much like firearm people, are highly visual. If you have any doubt about what I'm saying, look at how many people don't actually use their knives and just post pics.
I am not saying that pictures have to be elaborate, but they need to have good lighting, layout, and have strong visual appeal.
You might want to think about connecting with someone on social media who already has an established presence, and is good with photography who is willing to aid you in exchange for your knives. I know that might seem like an expensive way to do things, and it is hard to find someone you can actually trust to follow through. I have no doubt there are people on this board who can give you suggestions. If they are willing to showcase your blades in pictures on their pages, it would generate sales. However, I would be very cautious in this approach. For example, I have a friend who makes custom firearms, and they sell for roughly $3,500. One of the big name guys told him he would post his guns and would do it a certain amount of times and guarantee a certain amount of views. The loser posted a pic one time with it in the background and it was never seen again. A small company can't really afford to sue for breach of contract or anything. Find someone worthy of your trust, and check out their pages. If they don't have a proven history of good clean images, and/ or can't tell you who they have worked with, ignore them and find a better option.