I think the background dominates the worksheet and detracts from the information.
How about a trend line, to show more to the viewer, of what is happening to the population.
Is this a stacked bar chart or box plot? with area plot & series picture fill? Looks good but as bob said the background is distracting and adding year on year demographics would be good.
Also if you wanted to deepdive you could do a statewise heatmap choropleth basis year