If the detailing is right and the logs well selected European (Scottish) Larch is excellent.
Russwood is extremely expensive, for no apparent reason. Any good saw mill selects boards, I don’t see any difference between them and a decent sawmill.
I recently bought some machined boards from Fasque Timber https://www.fasque.com/fasque-timber-products
The quality was excellent, boards machined to my profile and a fraction of the cost of Russwood.
all add some photos later.