There does seem to be a bedding problem, maybe because the friction faces of the pads are not flat or not machined parallel to the backplates. However, you've got enough contact area there for the brakes to work more or less normally.
The lack of "bite" may be nothing more than different pad characteristics - pad friction is speed-dependent, so some pads will exhibit better initial bite than others while still having similar overall performance. ECE R90, the approval process required for all aftermarket pads, allows ±15% variation from the OE pads - if you've replaced pads which were near the +15% limit on friction with a set which comes close to the -15% limit you'll notice a difference.
Where are we going & why am I in this handcart?