I remember a big moment like that for Ophelia. When they were babies, they would play king of the hill on my high-backed office chair. But since Trent was 2 weeks older, he could climb it better and always won. So one day, she decided that she was going to master climbing that chair! And she did - she practiced and practiced with such a look of dermination on a little kitten's face.
And then she looked so proud of herself, just like little Elsie does in that first picture!