Trish
It is simple design of painting and very graphical painting, strong red and green belt work as frame for painting in middle, it has nice woodblock quality painting and primitive but green and red frame makes modern painting and very cheerful also sharp looking, nice.
Manjula
She painted for study of face which has most expressive part of human, if you have study expression of face you can use any other part of body too, it is interesting that you painted imaginary people and situation of wedding of India, woman and man has different character so you will study different expression too, you got nice colors and did good.
Tatyana
She painted her favorite model of her with her design of clothing which modern punk looking, and captured texture of clothing and her alien looking face, it is right color to use black for this kind of subject, it is stylish painting and has good impact, also shows her world, good.
Niya
Sometimes it's hard to continue previous painting that has long time ago, because not same energy as before and so as inspiration too, but don't give up, you have to paint as new and more flexibility to continue old painting so try to play with painting.