Besides my simple reasoning I used before, I would say that I did sense a sort of N or S feeling from the writing samples you posted that I can somewhat analyse. The first one I thought was N because of the very loose, flowy handwriting she used. It seemed to care less about details and following a proper structure of writing out each letter and instead kind of 'felt' her way around with the words. Letters blend together, unlike the second sample where everything is spaced evenly. It seems like each word as written as a whole, instead of letter-by-letter. It also looks quite rushed, but really natural. I dunno why but that kind of also indicated P to me.
For the second sample it kind of felt more SJ to me, just probably because it seemed so neat and orderly and so matter of factly written out. It also looks really feminine (so F)... [ but that's not even what she is so... um, I guess that doesn't work ]
I would have no idea how to determine I / E, unless maybe I actually read the things. I did not at all bother to read the content btw.
Does this make any sense? Hold any weight? Or am I just pulling stuff out of my --- :0 ?
There are so many different ways you can analyse things really.