Beatify month-year axis inside report

I've created bar chart report showing some trends. I want to disply year and month by x-axis.   

I was able to make it work with the following solution: 

I'm using calculated column and combining Year + substring(month). It works, but it doesn't look as good as I want. 

I want to use for my axis something similar to timeline visual:

Year, then month (say without quater). 

Is it possible to do that, or my current solution is the only option?