There are a number of problems with your technique. In order, your second pull, or the ''explosion,'' the bar gets kicked out in front of you. It needs to go up, not out. Up.
In the 155 video, specifically, you're doing the second pull way too early. You're hitting yourself just above your knees with it. This doesn't happen as much in the 135 video, but it's still happening too early. Because the bar is getting out in front of you, you have to get on your toes to catch the bar. If we added another 5 kg to the bar I bet we'd see you take a step forward to catch it, or you'd just miss the clean.
Because of the problems with your explosion, and also because you're not getting the elbows through, you're not getting a good rack. Again, another 5kg and this would fail. In the 155 video, your elbows don't come through until you've actually caught the weight already. Turn your hand over as quickly as possible, and throw your elbows through and high. And try to land in a position in which it would be comfortable to squat.