I grew up in a similar setting to this. You need a sun lounge though, really tops it off. Then start growing some potatoes and veg, get some chickens, pigs, ponies, cats and dogs and your on your way to living the good life.
I've always hated conservatories and in my mind they're just a posh version so not for me

, we have started a small orchard in the far corner and i knocked up some raised beds for veg, need to decide where the green house and chicken hutch are going this coming year. I grew up with lots of animals and i really miss that, i really want to get some turkeys along with the chickens but we'll have to see how that goes.
if i was building my own home i'd have to spend years getting all the details right.
for instance i would want old school plaster cornice however i don't think anyone does that any more and you can buy plastic fake one.
http://www.blalockcabinets.com/uploads/1/4/0/2/14024983/166022788.jpg
just an example not what i would go for but i think it's details like this that give a home character rather than generic new builds where everything is flat and rectangular rooms
One of the things i wanted from an early stage was no coving and the most plane skirting boards architraves i could find. I really like clean lines and hate fussy details. You can get amazing plaster work done however, my next door neighbor whom i bought the land off has built a very big Georgian style house with amazing plaster work which really suites their house. The ceiling roses alone are amazing but i also really wouldn't have wanted to pay that bill!
Why have you two front doors??
One is to the utility room, don't want to walk in to your front door and nice hallway in your wellies

There was pretty much nowhere else to put the door with the way the house was layed out hence 2 on the front.
Looks great, does it have underfloor heating etc and we'll insulated?
I like the outside rendering+ease of a timber frame... But my only thought is you have a hell of a lot of drain pipes? I imagine as you save so much on time with a timber frame it saves a lot of labour cost
We don't have underfloor no, i never liked the feeling of the floor being hot it kind of freaks me out and makes my feet feel weird

so we've got standard radiators mostly and some funky vertical ones in the kitchen/diner area. It is however insanely insulated, the builders said they'd never put so much in to a house they'd built before. If we light the log burner in the open plan space within an hour or so you can walk round the entire house in a tshirt if its 0 degrees outside no problem and that's the smallest stove we could buy at 4.7KW. We also find we have to keep the door to the lounge open slightly in the evening as with just the 2 of us and the TV on it gets too hot otherwise after a few hours. Makes it very cheap to run.