If you've always dreamed of painting something else besides your residence's walls, or if you've dreamed of painting something on your walls, not just applying a coat of paint, then you may be interested in painting courses. Several art studios in New York City offer these courses, so you should be able to find one close to you. You can also look for classes that fit your schedule, as many of the locations provide "marathon" sessions (held three times a year) as well as evening and Saturday classes. Any of these should fit into your schedule.
New York Studio School
This is one location that offers the drawing marathons. Basically, these are an entire semester or quarter of art classes condensed into a shorter time period. They are held in the summer, as well as in the fall and spring. You still get all the benefits of the regular art classes, you just get them a lot faster.
Beginners and advanced students can participate in these or in the evening or Saturday classes that are available. You should have no trouble finding one that suits you.
The Art Studio New York If you live on the Upper West Side, you can attend classes in this prestigious art studio. You can participate in group or private classes, which include painting classes for those interested in this particular genre. Additionally, you have the opportunity to attend international workshops through The Art Studio New York. You can learn about art in other countries, and then return to NYC ready to apply that knowledge to your classes and painting works here.