Sounds like a good start to me - it's a pretty diversified collection. As you say, it's better to jump in with small amounts rather than get analysis paralysis and not do anything.
If I had to nitpick - personally I prefer to have property funds that own properties rather than property equity funds, but that might be a matter of personal taste. And maybe in some cases you might be able to find funds that are even cheaper than Vanguard in HL's core trackers list (e.g. Legal & General UK Index for 0.06% with zero initial charge, rather than 0.08% with 0.20% initial charge for the Vanguard equivalent). But you won't go too far wrong with what you have. Stick with it for a while, and see how it goes.