said with love - not all brands, or makes within a brand, fit all riders, and CWD doesn’t fit all riders. So, keep an open mind on the brand
Usually this is a rider issue rather than a saddle issue. What sort of exercise do you do off horse? Your knee - are you saying it keeps rolling away, or you rotate your leg inward and are pinching with your knee? I’m assuming the latter (pinching) just based on the pictures but want to check
Maybe the stirrup bar, but it’s also related to not opening your hip. Closed hips encourage you to pinch with your knee and keep your your leg back. Your pictures all have you tipped forward above, and tipped back below, your hips
Do you have a picture straight from the side if you just sitting in the saddle as you normally would? As in, not trying to correct things you feel you have an issue with? That will help see if it’s the sape of the saddle, or fit of the saddle on your horse, etc
all related to all the above - lack of open hip flexors, pinching with the knees, etc
Has a trainer ever had you walk around leaning backwards and pushing your feet out in front of you? Obviously that’s not a correct position BUT, when our body gets used to a position, it’s hard to get right to the correct position. Going the opposite extreme and THEN working towards correct is often a lot easier.