The object of interest in the first photo is the power steering pump which is usually pretty good and relatively trouble-free. There's an idler pulley a little higher than it and towards the centreline of the engine, it is more likely to be a source of noise (or the belt).
The idler pulley we're talking about is in the second photo, it's the black one in the middle. To the right is the alternator, the air conditioning compressor is below it, the water pump is to the left with the cooling fan assembly hanging off the front (of the water pump - that's a fairly typical arrangement).