I woudn't go 100% by the placement of the spokes around the valve.
I've read of reports where people had purchased batches of the same brand/model of rims, and some started one direction, and others started the other direction.
If the holes are drilled directionally, then your wheel probably is assembled wrong. If the holes are not drilled directionally, then it wouldn't make a difference.
Post a direct side view of your wheel showing at least the valve and the hub.
It is hard to tell from your photo, but it appears as if the two spokes around the valve cross. That is considered VERY BAD FORM. It isn't a critical error, but it would indicate an amateur wheel builder built up your wheel, which could also indicate that they never checked the drilling of the spoke nipple holes.