As a first-order approximation, I would say that phenomenality is "availability for introspective attention": Consciousness is a property of all those mental contents to which you can in principle direct your attention.

Imagine you are trying to lose weight and attempting to concentrate on writing an article, but there is a bowl with your favorite chocolate cookies in your field of vision, a permanent immoral offer. If we are capable of rejecting such offers or to postpone them into the future, then we can also concentrate on that which we currently want to do.

Subjective time flows forward, the phenomenal self is embedded into this flow, an inner history unfolds. That it is why it is not a bubble, but a tunnel: There is movement in time.

Consciousness is phenomenologically subjective whenever there is a stable, consciously experienced first-person perspective.

Someone who cannot stop his outer flow of words will soon be unable to communicate with other human beings at all.

Conscious experience as such is an exclusively internal affair: Once all functional properties of your brain are fixed, the character of subjective experience is determined as well.

When you are simply observing your breath, you are perceiving an automatically unfolding process in your body. By contrast, when you are observing your wandering mind, you are also experiencing the spontaneous activity of a process in your body.