Celebration for his birthday
The things that could be observed from a painting are that it is a <u>portrait of a man</u>, it shows<u> visible brush strokes</u>, and<u> displays bold colors</u>.
Even though there was no attached painting, we would be able to see these things within the painting. You can see what is contained in the painting, how it was painted, and what colors the painting is. However, you can not see when a painting was created or know that it is part of a large collection by simply looking at the painting.
I think it is compound or complex! Maybe, but it might be complex. I am 70% on the complex.
Sentence A Uses a colon correctly.
