Answer:
Frida Kahlo was inspired by Mexican culture and a lot of her art was considered to be “autobiographical.” Some interesting things about her was that she was a part of the Mexican Communist Party and was disabled from polio as a child. She often told stories of her life through her art and what she had experienced throughout it.
Some things I had been told by a Spanish teacher of mine in the past was that Kahlo explored gender class, identity, and even politics in her art.
This is only an idea, but an advantage could be that you don't have to wait for it to dry and disadvantages could be that you don't get as vivid colours?