While this isn't the
first picture - the first sketch is buried in a sketchbook somewhere - this is the earliest picture of Masahiro and Akane that I can
find - and they haven't changed much. Masahiro has grown a lot more ragged and scruffy, and I've wrecked his outfit quite a bit - switched his fancy belt for a scrap of cloth, turned the hems ragged, switched out his neat grey shirt for one that's zombie-stitched together out of two different-coloured halves, etc. Akane's face is a little rounder, her eyes a little bigger. She's got a pair of trousers these days that she doesn't here, and so on.
These two are one of the very few instances when character-designs stay more or less the same from start to finish. Usually, I change my mind a dozen times. With Grassblades, I instead settled for changing my mind about the plot a million times! XD