It's a start, which is always a good thing
Position 1 doesn't make sense to me. If you remember a dream, you usually remember the primary emotion of it (often the strongest memory). So I'd make position 1 something else completely.
2 is useful, perhaps not in this position.
3--usually dreams are about processing what's going on in this life, with messages for raising your awareness about choices or understandings. If you want to do a reading on past life effects in a dream, I'd change the whole focus of the spread.
Otherwise I'd make 3 be something about what you can best use from the dream for waking growth.