Bar Chart using Silo graphic?

After you create your silo image ( or better yet svg file ) import it in the PBIX file and place it behind your column chart!

I assume you actually meant column chart (vertical) vs bar chat (horizontal)

Go to the View Tab - check the Selection Pane and then arrange so your Chart is above the Image

Then turn off Legend, X and Y axis, Title and only turn the Labels on if you wish

This is how this Pump was built showing the components of the Average US Diesel Price for March 2018

Crude Oil, Refining, Distribution and Taxes

This is only a workaround and it will not do exactly what you are asking for :smileysad:

To change the shape of the column itself in the chart I suspect you need to build your own custom visual

Good Luck!:smileyhappy:

EDIT:

You can also try using your image with the Infographic Custom Visual

https://appsource.microsoft.com/en-us/product/power-bi-visuals/WA104380898?src=office&tab=Overview

Read more about it here

https://www.microsoft.com/en-us/research/project/infonice/

and here

https://powerbi.microsoft.com/en-us/blog/quickly-create-infographics-with-the-infographic-designer-custom-visual-for-power-bi/