Just what I had in mind! Glad to know you trust your "old" sister's opinion. Oh--that was "oldest," wasn't it? That's ok. Seriously, though, this is great. Excellent cropping.
I really like following the whole series here....she is so right, 2 different images from the one larger picture....Good job and it always pays to listen to your sister! No need to point out that she is older though! ;)