I like the flatness. It's really gool but you could work a little on colours. Maybe background #282828 the ring and canada #c1392b and ball #ecf0f1?
Oh wow, this is fantastic! Great color scheme and image (green blends well with yellow, and certainly matches the color of the grass for where the sport is often played on). I'm wondering if the logo will still be legible if it's much smaller. I notice there is text on the logo so I'm not sure if you're going to place the logo on a t shirt sleeve, where it's hard to read the inscription. Otherwise, nice job!
For me first one looks better, just a personal opinion. Overall the design is clean and simple. And the whole beauty lies in simplicity good job!
I like the first logo better. It's clean, simple, easy to understand what it's about and I really like the contrasting colors.
The 2nd Logo looks better. I just have a suggestion that you should remove the half star after "Australia" in the second logo and capitalize the "est".