What type of visualization is best to create in Looker for comparative analysis?

[Charles_Dataviz]

Hi, I built a visualization about "Top 5 countries with positive and negative change in road traffic death (rate per 100,000) between 2000 & 2019 based on data from WHO.
 

I am polishing my skills by creating simple and advance visualizations like this one in short time and without any programming skill using visualization tool.

My question is there a way to create like this or more advance visualization in Looker.

Thanks.