Water Restrictions

I'm so sorry I haven't posted anything for so long, I truly am. I've had some family and school matters to deal with and i hope you'll forgive me for taking so long. For this drawing i used color pencils. I don't like it a lot, i think i'll try using water colors next time. I used brighter colors for the right side and darker colors for the left. For some reason the woman on the right looks so much more defined, I think because of her light skin tone. I also touched it up a little on paint. I used some negative space on the top, what do you think? Thank you so much, and I am SO SO sorry!!