Features of a given school can be quite unique and bold or more subtle and broad. About all that can be discerned from a distant picture such as this is the overall profile, some features of the trigger guard, and I'm guessing that the lock may be a late Ketland.
What school (?) is a bit of the "chicken and the egg" thing. Without a clear plan going in, many contemporary guns fall into no particular "school" at all, because of the mixing different stylistic features as well as time periods.
I'm not saying that there's anything wrong with that, but if your goal is to make a gun of a particular school you have to plan for that up front, including some of the bigger factors such as profile, buttplate & trigger guard, sideplate, lock, carving style and on and on, depending on just how particular you care to be.
Jeff