Looks like you did just fine.
Sorry have been out grousing on my own for a month and have no puter connections at camp ~ as of yet!
I breast grouse and wood**** by pealing the skin back and taking a shears an cutting the wing joints and neck to end up like your picture.
I soak mine over night in clean water in a fridge and then freeze.
I have a great recipe and will fo look for it and post it here for you.
JW