I would say that this sentence contains examples of colloquialism.
Colloquialism is <span>a word or phrase that is not formal or literary and is used in ordinary or familiar conversation.</span>
A simple sentence has only one independent clause. A compound sentence has at least two independent clauses. A complex sentence has one independent clause and at least one dependent. A compound-complex sentence has at least two independent clauses and one dependent.
Having this in mind, 1. is a complex sentence, and 2. is also a complex sentence.
B. The description of the windows as empty eyes with a ghostly look creates a dark mood.
The poem “Paul Revere’s Ride” by Henry Wadsworth Longfellow personifies ‘the meeting-house windows’ as empty eyes with a ghostly look thus creating a dark mood in the following lines:
“And the meeting-house windows, blank and bare,
Gaze at him with a spectral glare,”
The poem is about the night before the day the war would begin. He describes the coming of the war and its consequences. He speaks about the night when Paul Revere went on to warn the people and get them ready with their guns for the war.
There passage is trying to make it clear/logical about the topic in a straightforward manner