English repp ties don't exist. They are regimental ties and AFAIK fairly formal, to be worn with blazers and such.
The only silk ties that IMO go well with tweed are bold paisley madders and those of the shooting variety depicting grouse or foxes. PS can be wool or wool/silk but never a linen in TV-fold.
Heavy weigh tweed calls for shirting with some texture. A nice flannel tattersall would have been perfect here.
Edit: and pink and navy is definitely not a country combination. In other words, this would have been a great fit if the tweed jacket was replaced by a navy blazer.
Terminalogical exactitude is not something that I care a great deal about, not in this context, at least. I meant a striped tie in which the stripes descend "from the heart", and I think that was not difficult to discern. I dislike the American striped tie in which the stripes descend from the top right to bottom left. So, I was attempting to state that my personal preference would be if the tie had been of the English variety.
A Harris tweed jacket is a wonderful thing. And it looks perfectly fine with the OCBD and silk tie in the picture. And at this point, we're in de gustibus non est disputandum territory.