@peteranastasio It is too difficult to tell where babies knees are here. As mentioned, rule of thumb is knees above bottom. Another way to visualize this is as an "M" where the bum is the middle of the "M" and knees are the top bumps on the sides. It doesn't have to be a super deep middle bump but you should be able to see the height difference. If you achieve this, the legs are far enough apart.
The usual advice with this positioning has to do with concerns on proper hip placement and in particular hip dysplasia. The "M" is a more natural placement. If baby has healthy hips, this is less a concern. There are some baby carriers on the market, such as the original baby Bjorn, which do not allow for this ergodynamic position, but are still technically okay - just maybe not optimum.
