This is what i've been doing in my holidays (:
I've been practising my invert. It's not to this kind of degree yet, its moreso another 30 degrees upwards haha. But i'll get there when my flexibility increases.
And i've been practising my Hollowback. Which is also not to this degree yet, but moreso getting there haha. I'll post up photo's of my freeze's when i can get someone to take it for me :D