Powerpoint question

[Angrist]

I'm in the last stage of my MSc thesis, and now I want to add some graphs to my document.

(I interviewed people about experiences in natural environments. For every experience I asked if it was positive or active, and if it was an inactive or active emotion. Both on Likert-scales of 1-7.)

So now I would like to put both sets of data into one graph. I drew what I want, see the picture below. (Graph A has bars within bars. Graph B has a data set on each axis, with circles indicating how many experiences of that combination there were. The bigger, the more.)

Can it be done? How?
Also: Does that look ok? Or is it too confusing? Would you use both, or just one, or a totally different method?
Thanks!