The painting squad of 5th Sussex (Reserve) Battery, Royal Field Artillery. They left England in October of 1917 for Egypt. After service in the Middle East they were stationed in India where I believe this picture was taken.
Members of the Liverpool Scottish making a show of reading the latest war news in camp. After being mobilized in August of 1914 they were sent to the defenses on the River Forth. In November they were dispatched to France.
This appears to be a picture of two Royal Fusiliers with the same name of J W Brown. The standing Brown has a wound stripe while the seated Brown shows a good conduct chevron and two overseas chevrons.