Ravensburger are high quality jigsaw puzzles.
If we could use them to build our own, that could be an excellent idea. With a jigsaw, it is really important that the cardboard used is strong and is well cut, and that the shapes are all a bit different, so there is something to be said in going for a reputable producer. The quality of the reproduction of the picture is also important, but to my mind a bit less so. Needless to say, Ravensburger would make a fine job of that too.