The one on the left is cleaner and simpler, but still too busy, in my opinion. By the time you scale it down to small enough to look good on a blade, it will be almost illegible. I think the trick is to keep it simple. Then simplify it. Then make it simpler. It doesn't need to do more than identify you as the maker, though some consideration should be given to brand recognition as well. Mine simply (catching a theme here?) has my name, Travis Fry, with the shape of Texas in between. I'm about to replace it with one that just has T.Fry. I'd go even simpler if I could, but I know at least 4 other folks with the same last name who also make knives, so just "Fry" won't cut it. Spend some time looking at the best makers in your category (folders, hunters, tactical, etc.) and see what they do. If they've reached the top level it's because they know something about what sells in addition to what makes a good knife.