Wow

Nice work and to my mind definite progress. The first one gets my vote here: I think you've got the proportions and size absolutely spot on. It's just about fine tuning really and even the smallest of alterations can make a huge difference to the overall effect.
Both flies you have tied are very fishable
With regards the size of the bubble, I would suggest that the first is better, However, I have every confidence in changing the size of the loop dependent upon the water I am faced with. It may sound fiddly, but infact, just a few tied with different sized loops can be very useful.
Faster water calls for a larger loop (and possible an extra plume of CDC):
A slightly smaller loop will still float well and helps the fly to sit a little deeper in the surface film - therefore ideal for smoother, glassy glides:
Tie a few up and give them a swim next season - they work well as they give a super footprint.
I sometimes tie a few woodduck fibres of add some Zelon behind the loop to add to the 'emerging wing' imitation.
One other thing... you may find turkey biots longer and more pliable than goose... and that may help you even more acheiving the effect you require.
Cheers,