Not bad Champ. A little bit cookie-cutter and conservative for my tastes... but definitely not bad.
It would help a little more though if you were playing against someone who was better against Sheik. Or maybe Sheik just ***** DK? Hahah, I don't know.
You're definitely good, just some nitpicks:
- Sometimes utilt after an ftilt, it can hit sometimes where usmash and dsmash and nair cannot. Sometimes utilt leads to another aerial (which they can probably dodge, but people are still open sometimes after air dodges.) Note all the uses of "sometimes." Just another option for you.
- Your sheik is conservative yes, but I think your Zelda could be MORE conservative. Don't take risks on people who know how to shield the entire usmash and fsmash. Mix up your close range with dash attacks, dsmashes, and even tilts. Pretty much all of her ground moves save neutral A and dtilt can potentially KO. And if you're far away, there's no need to approach unless the other character has something to fight against Din's fire. Fire away!
- I didn't see a lot of tethering. Sometimes the speed of a tether recovery to ledge jump air can be fast.
I don't know, you are quite a solid Sheik. But IMO maybe some faster play could work in your favor just to open up your options a little more. It'd help in the long run, I bet.
Keep winning those matches Champ.