Ah yes - the eternal problem of how to capture pictures of kittens (who seem to have an absolute knack of disappearing out of focus just as you press the shutter....
) You did well - I usually just got a tail and rear quarters to the left of camera, or a whisker and part of a wide eye.
She may put on a growth spurt and then calm down again - one of our two - Moray - has definite Maine Coon ancestry - he inherited the floofy coat, the ear tufts, the fantasticagorical tail which often wears the cat, and catchers mitts for feet, complete with fur tufts on the pads. After a shaky start wihen he came to us underweight and half starved, he spurted ahead in growth between four months and 8 months, but he's settled down again now, and I dont think he will be anything other than a Mini Maine Coon.
It will be interesting to watch how Lettie develops. She's gonna be a little stunner, for sure.