Avoid periodic constructions unless you know what you're doing.
Cumulative sentences are a nice way to add detail.
A cumulative sentence is direct-order sentence with modifying information added at the end. Although your nouns and verbs should be the strength of your paper, good adjectives can help build the vividness of your writing. As with nouns and verbs, the more specific the better. These add unnecessary verbal lard to your sentence and slow the reading. Do not use exclamation points.