I like the form in the second set of videos, especially on the shoulder presses. Good work.
Now, a critique on the lateral raises. I would bend your elbows more and make sure to lift the weights a bit higher. See, the thing about isolating the medial delts with lateral raises is that you don't actually even involve much of the medial heads until you get to the upper portion of a lateral raise. I think you could improve your range of motion on that upper portion. I think it would be easier to do this if you bent elbows as mentioned above.
Here, check this out:
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I wouldn't bother looking at the links about errors in form as you aren't making them, and it's pretty obvious that the example errors in form they use clearly don't constitute proper form for a lat raise, lol.