Deadlift:
You need to set your back in better extension at the start, right now I don't see any real effort to get into position. You also want to stop yanking the bar off the ground, do this: YouTube
In the video you seem to start with your hips progressively lower as you get fatigued during the set, keep them at the right height in every rep.
Press:
Looks good. You need to stay tighter at the lockout, are you breathing out at the top? No need to do that if you start your reps from the bottom, it will just make you lose tightness.
Also I think you would benefit from learning the press 2.0.