How to approach a new model (semi-organic)

 From:  LM (LOSTMARBLE)
9248.6 
These subdivision tips are super helpful - thanks!

Michael, I thought about using a subd modeler, but the picture I attached is just part of what I want to do. There are other tools that MoI is particularly good at that I want to use as well. These sub tools might be the perfect combination.

And sorry, I don't have the models to attach because as they didn't work out I just didn't save them...