The paintings shown below are neither formal, commissioned portraits nor the stylized works just mentioned. Instead, they seems to be more like exercises or experiments Alexander did when not working on major assignments.
This selection shows women dressed in green gowns. It happens that green seems to be a difficult color for many artists to work with, especially when the main subjects are people. For example, the somewhat orange color of skin often stands out sharply when placed in a woodsy or grassy landscape setting. For that reason, artists need to take special care to create paintings with that subject matter that are harmonious in terms of color. So even though Alexander was painting interior scenes here, he might have been working the flesh-green problem because the results are rather sketchy, unfinished. I note below that he was probably using the same two costumes for his models.
The three paintings shown above feature a billowy gown that might be the same item shown from different model poses.
The images below are of paintings where clearly the same gown is used in all cases. The model might also be the same.
This seems to be a sketch or study.
These two paintings are nearly identical, but the one immediately above is more finished.