Keep the sheep herd better managed . Keep it below 150 ewes and maybe 10 rams tops.
Get another breed of small cattle (like Irish Reds or someother long haired cow)
Get another donkey to give Benjamin a mate.
Few more chickens
Make some more wildlife areas(want to invite kestrels and keep the Coopers Hawks happy)
Disinvite deer by opening hunting to prescreened hunters.
Finish building the wood kayaks
See about buying another offshore boat. (One that is a candidate for a major rebuild is best, it allows the imagination to run the show, constrained only by the wallet of a retiree)