Answer:
water colour wash
Wet-in-wet painting
Explanation:
One tip for any watercolor wash: If you notice a mistake in a previous stroke, don’t try to fix it. Once the wash has started to dry, a new stroke will almost definitely be more noticeable than any small mistake. It’s best to leave these happy little accidents as they are.
Wet-in-wet painting is one of the most basic techniques — so basic you might have already done it before without realizing it!
I would have to say either valve trombone or baritone/euphonium.
After ruling over western Europe for centuries, the Roman Empire collapses.
Answer:
For question 2, yes it does look correctly proportioned.
For question 1, I am not completely sure on, but it does look like it could be representing strength/power.