(Edited words are in capital letters)
1) The girl leans toward him laying her right hand on his shoulder. (Correct)
2) The man is wearing a navy blue suit with a pink tie. He is also wearing something black around his left wrist THAT looks like a strap.
3) In the background, there are a lot of trees and bushes, and the sun's rays ARE lighting THEM up.
4) A green meadow-like landscape really enlivens the picture.
5) People don't know their own language ONE hundred percent.
6) The bigger girl WORE a baggy striped sweatshirt, a pair of light blue jeans, and a pair of pink half wellingtons.
7) There is opulent vegetation tinctured by the rays of the sun in the picture. (Correct, but "tinctured" is not a word we use often)
8) The woman and the girls come tripping BY with SMILES on their FACES down the path of this lush green park. (I'm not sure if "tripping" is the right word here. Do you mean "skipping"?)
I hope my answers are helpful, Medina. Please ask if you have any more questions =)