In particular, I find it much more relaxing that Desert Golf, which I think comes down to a couple of factors. The design is one – the cute graphics and colours really help. Music is another – you've done a great job there.
I think the most important bit is the gameplay though – with not showing the score constantly, I'm not as worried about trying to keep my stroke count as close as possible to the hole number constantly. The gravity dynamic also adds enough whimsy that I don't feel like I "absolutely should have got a hole in one" like I did on some holes in Desert Golf.
All in all, great job! Instant purchase from me and I think I'll be spending a lot of time with it.