Hi,
Welcome to the forum..
It sounds very sweet, and it would not surprise me if a wold dog puppy is a bit more shy than a regular pup due to it's mix..
However to be taken at the age of 7 weeks is that still suggesteable?
For a puppy that is 1-2 weeks crucial socialisation with their littermates, or does that change in a mix? I would be a bit careful on that part and do some more research on it before taking it home. Cause if it's shy it might go more shy cause of it.. just a thought...
good luck and I hope tog et to see some cute pictures soon

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