i suppose it is the focus, i only used the centre point and recomposed, but so many the focus is off, i was in egypt so light wasnt a problem, and i was also trekking in uganda and the landscape shots just lack punch. the colours and contrast just seem a bit wrong. out of 1000 pictures and some extensive sharpening, there arnt that many im happy with!
id upload a few shots but frankly im embarresed. i feel a bit cheated out of money spent. im gonna have to rent an expensive l lens and compare, but at the moment, im really disheartened.
OK, there are 2 issues here.
First is focus: you mention alot of light, were you shooting wide open? It's possible your focus and recompose is affecting your focus if you're shooting wide open, especially for objects that are closer.
As for "punch", are you just looking at the raw images? Those will lack punch and contrast, that's something you adjust in post. You posted a short of the pyramids and yes, that lacks "punch", but then you didn't do any post on it, so it's what I'd expect.
When you open a "raw" image it will seem quite flat, that's normal.
Can you upload a few of the raw images so we can have a look? If your landscapes are being shot at narrower apertures and they still look out of focus I'd say the problem is probably the equipment.