You have explained cross-Asset Correlation Analysis means looking at how different types of investments, like cryptocurrencies and others regular stuff like stocks or gold, move together. This is a very short, but a very valid definition of Cross-Assest Correlation. It shows us the comparison of their prices whether move same direction or opposite.

The greatest advantage of correlation between assets is, if we understand the correlation between several cryptocurrencies, it facilitates the diversification of investment risks. In simple words it decreases the risk of losing all your capital in one asset. These graphs you have shown here beautifully explaining the comparison of steem with other coins.

Wish you good luck in the contest friend.