Ask indoor photography if you can shoot this feeling with a flash.

The light is not strong enough, and the window model has strong light transmission. You can make the following adjustments:

1. The light on the left is close to the window, and the index is adjusted to increase the brightness.

2. The thickness of the white paper window may not be enough, resulting in light transmission effect.

3. The strong right light masks the main light on the left and scatters the shadow.

Generally speaking:

Adjust the equal distance and index to realize the strong light of the left lamp and the soft light of the right lamp. Pay attention to whether the window is transparent.