Well, I watched the matches of him against Crack, and I'm just gonna point out some things here and there.
As Snake, that guy was way too flashy and didn't know how to use him well. I dunno how many times he spammed F-tilt in succession, and rarely used Up-tilt to finish off Ike. Also, his edge guarding abilities were really predictable (up-smash), so good job by Krad to read and sniff that stuff out.
As MK, he was over aggressive and well...he doesn't know how to play MK. The use of the drill attack to recover, and failing to grab the edge was a perfect example of that. He was way too predictable again, and Krad did a good job of adjusting and winning.
So if you are wondering why I mentioned this stuff about his opponent, it's to say that his opponent's skill level wasn't that high. He's pretty bad to be honest. So barely winning against a bad player isn't that impressive.
As far as his ike goes, guy needs to learn how to jab cancel, it gives you some extra damage that can pay dividends in the end. I think in the Snake match, he spot dodged way too much which is a bad thing against Snake, since a lot of Snake's moves last long or are multiple attacks. He should shield more in general. I think he rolled a bit too much, so he should cut that bit down.
Against MK...well I'll edit this later.
Ok, so for the most part, nice job baiting MK with retreating or stand still N-airs. That move has barely any lag upon landing, so good job making good use of it. First stock, you were getting pressured a lot and it led to your death. Your best bet is to get some space, and once you land a hit, just go after him until he has safely retreated. In my opinion, applying pressure to MK is a key to victory, but knowing when to apply that pressure is important as well. MK will destroy you if you apply pressure at the wrong time, so yea.
Again, I don't recommend you spot dodge too much against MK as he has many multiple hitting moves and lagless quick moves. Stick to shielding.
What state was this tourny in? For a semis match, the skill level of Krad's opponents isn't very high at all. He should try traveling or using wifi to see some better players. Good job though overall on capitalizing on your opponent's mistakes.