First: three tiles NE of the settler's current location. It'll pick up a cow, the wheat, a tobacco, and a couple of bonus grasses for an exceptionally strong city. Taking more of the cows in a single city is counter productive at worst, unnecessary at best.
Second: the tile that the settler's standing on now. That town will be able to work the wheat when the cow/wheat town isn't, which will allow for faster growth, it'll pick up the dyes, and it'll connect up your empire a bit for better defense, movement, etcetera. It's not on the river, as I'd prefer it to be, but being able to use the wheat can make up for it. It can build some extra workers if it winds up at size 6 without an aqueduct for a while.
Third: two east of the wheat, on the plains tile that's in the fog sort of between the two cows. More food, plus looks to be coastal. Another superb city.
Fourth: north of Amsterdam, preferably picking up the northern wheat. Exact placement depends on what's found in the fog in that direction -- will need to know that to make best fit.
Down the road, I'd consider another town east of the cows that's able to make use of one or two of them -- even with that cluster of food bonuses shared by three cities, there's still room to share a bit more. And irrigate all the food bonus tiles. FOOD IS POWER!
Renata