Ok. My bad on how the shot of the amphibious plane was assembled but why does the image i posted have no black matte lines and dr dre image have a thick black matte line. that is why i said blue screen...

The painting part looks over exposed and the focus is well soft blurred even.

Even if they painted the matte paintings a certain way to allow for the final shot in terms of color difference this to me looks bad the other mattes look good comparitively.

I don't think it is intentionally all blurred and the sea is a weird color looks wrong and it is wrong because of the actual method. but most importantly if it was re-done as a composite it is pretty shocking it turned out like it did.