Rain, you seem to have spacing issues, especially for the first portion of the match. You either miss attacks or just bad at zoning. You seem to be in the zone right between committing to an attack or backing out. You must choose, wisely. You use Fsmash too much, Emblem Lord would've gouged his eyes out. 1:52 what?!? It's OK to end DB early. Peach was charging, you were far enough away to end the combo. And... BOB-OMB!!! My friend pulled 3 of those in a match once, no lie I got the video. I noticed that your Fair usage was always fastfalled. You'd SH, wait, and FFFair. Mix it up. And don't use Dair over land. Like, ever. Your spacing gets better as the match goes on, but still using too much Fsmash. Don't even try to zone with Fsmash, it's impossible. Marth's smashes are too easily punished. I only use them if I know they will hit. Near the end, a good Peach would've KO'd you at 5:12.
http://www.youtube.com/watch?v=iNcrr-YblUE
Im a new marth so heres a fight KEN COMBO!
One thing I noticed is that you don't really space... but you are new. Learn the length Marth's sword and attack at maximum range, making sure that you are out of your opponent's attack zone but your opponent is inside yours. It is crucial to becoming a decent Marth. Don't use UpB to hit an opponent above you, they can counterattack way too easily. Shaya's right, don't use Dair over land. Use DB more to punish instead of Fsmash, a good player will punish. Same with Dsmash. Practice SH too so you can do it when you want, every time you want. Also, I generally don't like to use my Double Jump to reach a character above my head (especially if my opponent still has a jump(s) left) as they can dodge your attempted attack and hit you offstage with no jumps left. But that's just me. Dash attacks are a no. And listen to Shaya, he/she (idk) knows what he/she's talking about.
Good luck with your Marth!
I like some criticism on my Marth/ tips please.
Thanks
Marth vs. Snake
http://www.youtube.com/watch?v=SgqNNN7zDT8
I personally think that you use Fair too much, but whatever fits your style, and you space them very well. Don't use Fsmash to punish, DB is safer. I only use Fsmash if I absolutely know it will connect. No Dash Attacks either (1:30 was it an accident?). You seem to know how to fight UFO's Snake very well, but I didn't see many grabs. Marth's grab game is good, so use appropriately. At 2:53, you could've punished him but it looked like you spotdodged by reaction? Overall, I don't have much to say. Maybe someone better can coach you on the finer points.