With neutral tint paint a splodge on rough paper note some dry brush work. Don't think about it too much

Look at your splodge and look for heads and legs. Try to picture people standing together. Paint heads last and keep them small you can make them larger but if the heads are too big it's difficult to decrease the size.

Using opaque colours paint in faces with yellow ochre + white. Clothing with opaque turquoise and yellow ochre add a bag with cadminum red. Paint in shadows. This is a nice excuse to have some diagonal lines

Put more opaque paint on the clothes. You can use straight from the tube