As your list is currently composed, you have expressed a strong Hudson Valley theme, with choices such as Barnard, Sarah Lawrence, Vassar, Bard and Skidmore. This represents an excellent group for a student with your academic interests.
As potential additions, consider Kenyon, Hamilton and Wesleyan. All of these schools offer strong literary attributes. Wesleyan is particularly notable for film.
To complement your current selectivity range, look into Connecticut College and Wheaton (MA).