Yoga contains eight limbs in its traditional form (Patanjali). When it has been imported from India, Asana has been mostly spread in the West, with some Pranayama and Meditation from time to time. In the Asana practice flows are very popular. My practice is based on structural alignment. It is of the utmost importance that students perform the form correctly before starting to flow. I have a clear diagram of the correct Asana in my head and use appropriate vocal clues as well as adjustment to bring students as close to it as possible; and understand what they need to work on. Here is an example for Adho Mukha Shvanasana (Downward facing dog) where each arrows represent one or several clues:
I can either teach classes that focus on structural alignment only (working on three to four Asanas) or once the alignment is correct: I use an intuitive sequencing to make people flow in a natural and pleasant way.
My personal Asana practice focus on inversion and particularly handstands transition. Here is a transition from handstands (Adho Mukha Vrksasana) to one handed peacock (Eka Hasta Mayurasana).