Hm, let us see.
In this dream, there was the section of the hall of iron and stone, a black shape sitting on the burnt, marble floor. It seems to be a woman, one that is clutching something to her chest, the green glow between her fingers.
Now, in the first dream, Cersei was in a narrow hallway that smelled of mildew, dust everywhere. Cersei was chasing after Bhaelys, shown to be a woman in a white gown, bright and immaculate. Later in that dream, Cersei was on the Iron Throne, with pillars burning via the green flames. Bhaelys was shown to be sitting in a pool of blood, holding a dragon egg, one that was cracked open and smeared with blood. Bhaelys was consuming it.
In the second dream, Cersei saw Bhaelys in an arcane circle of various sigils and Valyrian symbols. Bhaelys was holding a cup filled with some ichor that smelled of blood and tears. Bhaelys was surrounded by thousands of statues that were all holding cups, offering them to Bhaelys. The statues were crude, unshapely, gray things. However, as Bhaelys drank from the cup, the statues smoothened and whitened, and white pillars shot up to pierce the stars.
It is possible, then, that in this current dream, the burnt woman clutching something to her chest, something that emanates a sickly, green glow, is Bhaelys.