Could anyone tell me if these sentences are right?
✔ I will improve on my writing skills
✔ If I get an eligible job, I'll bring out an increase in my incomes
✔ Pollution will bring about destruction of the environment
✔ Pollution causes enormous damage to the environment
✔ I don't want to do harm him
✔ Technology has a dramatic effect on the environment and a huge impact on the nature
✔ ahead has got a positive influence on me
✔ A better job will lead to significant improvement in my life
✔we need to make better links between our clients
✔ Peace and happiness go hand in hand with a good life

Thanks!!