When using AHMI, you have to approach graphics differently than other conventional programs. AHMI is winforms, so there is only so much you can do with graphics. I attempted to do some drawing tools and they were ok, but what I noticed is you get so much on the form and it slows things down. I recommend drawing outside and importing as a picture. Also, lifelike graphics are a waste in my opinion. If you want to show flow just use a line. Microsoft has an adder for a line that you can draw at any angle.
