N54 oil leak??

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Hello,

So the other day I was looking under my hood and noticed that there was oil on the bottom side of the hoses nearest my oil cooler. Thinking nothing of it I ignored it for a few days until I noticed a small puddle of oil under my car.

I just got my car not too long ago but the previous owner just had the OFHG and the oil cooler gasket changed in July. I assumed maybe the shop he took it to didn't do a good job because he lives in the suburbs which pretty far from an actual bmw dealership. So I took it upon myself to just change it myself - parts are cheap and really it was just labour. I got it changed and wiped most of my engine clean but 2 days later I'm taking another look under the hood and I notice a small oil puddle.

Does anyone know what this might be from? I know the n54's are notorious for other oil leaks including the oil pan gasket. Any help is appreciated!