These sounds simple and straightforward most of the time. But when you look in to details there is actually a lot more can be consider like those value added service which might help entertain your guest, you may need to consider if you need to have any agenda what time do what or you just plan to have guest check in touch n go.

Some other notable entertaining service like photo booth, live band, sound system, mc, cotton candy/pop corn booth can be considered otherwise there's nothing to entertain the guest + those quiet awkward environment.

Also simple decoration can easily cost you few thousands as well, + if you want fresh flower that'll add up even more.

Oh yeah private villa please also take in to consideration the parking space available, you don't want your guest to get in to trouble at wedding day for parking at the wrong place.