The upper timing chain cover is a very common source of oil leaks for the EA888 engine. I just changed mine because the top of my cylinder looked very much like yours.
There are plenty of videos on youtube showing you how to do the job. It's quite easy actually. You can change out only the rubber gaskets or get a new kit with all the gaskets. I just bought the Rein kit from FCP Euro. I think there are two versions of the cover, so make sure you get the right one by counting the number of bolts. The later version has one extra bolt I believe.
My only advice is to spray/clean all around the cover to ensure no crud falls into your engine while you remove/replace the cover. Also, use a very low profile socket/ratchet since there is very little room.
And since this is an Audi, make sure you torque everything and in sequence or your car will blow up!.... just kidding... if you have experience working on cars, just tighten in a criss-cross pattern and make sure it's guten-tight.