Shaping tips?

[hoodsmommy]

Does anyone know of a book, article or site that has tips on shaping? I'm trying to improve my roses, but am looking for something applicable to any finished model.

[mrsriggins]

If you are speaking of a rose like the Kawasaki you would just open the middle up a little bit and then curl the edges out on all the flaps. That's really all the shaping that goes into it.

[origami_8]

The best tip for shaping in general is "take your time".
The shaping itself depends a lot on the model and what can be done. Clean looking models are most of the time better than crumpled ones so too much shaping can ruin a model. Always be very careful and gentle.
Different media (e.g. foil, thick paper, thin paper, ...) need different shaping. When wet shaping a model, fix everything into place until it's completely dry. For doing so you can use everything that comes in handy, like strings, cloth pins, wire, ...
Shaping takes use of different manoeuvres like thinning layers through either mountain/valley folds or rabbit ears, giving volume through crimps/pleats, rounding parts without really folding them, ...
Just be creative and take your time, the rest will come by itself.

[OrigamiGianluca]

I think that since shaping is the way to bring origami models closer to reality, the best way to improve shaping is look carefully to the real object (or animal or person and so on).
Try to catch their distinctive aspects and then reproduce them on your origami model.

All this should be done even before starting following the (very good) suggestions you have got till now.

It is a long way. You'd probably throw in your waste basket some models before reaching the final shape.