Hey thanks for playing, we definitely wanted more skating sounds in and even creating some, However, we didn't have time to make them sounds as good in the game as we wanted to, so we opted for culling a feature than having one badly implemented. If we update it definitely something we'd add properly.
In terms of the landing it's meant to be a bit hard, but we found once people get used to the controls and physics they were able to land very easily and much more often which was part of the learning curve, and makes pulling off those moves a lot more satisfying. Maybe we should make a bit easier for new players, but it also makes the more seasoned players feel that much greater at the game :)