Mixing timbers

I have a few pieces work pieces under my belt now, but I have never used different timber in one piece.



I have been given an old 45mm x 3000 mm tassie oak curtain rod. I want to use these as the legs on a chunky stool. I have some 45mm thick pieces of what think might be oregon that Ican glue up to make the board for the seat.



The two timbers will only meet in the holes where the legs are joined to the seat.



Apart from different grain and colour, can anyone see a problem?



Thanks for any tips...



Jorge