I regret watching this. No joke. You guys have decent technicaly skill but your di is bad and you and your friends play a little stupid. An example of you friends horrible di is when you up aired him with marth about 7 times. If he di'd and jumped and use his brains a little to attempt you upair with either an air dodge or sumthing that combo would have never happened. I loved you Roy combos though since your opponent couldn't di you performed cool looking combos that arent possible to do against an average player.
But then again i can tell your just starting and overral your catching on really quickly.
Just work on the following:
DI- its a must so you can avoid combos and survive for longer. Usually best way to di while being comboed is either up or down. You can also mix in right or left. Theres a section somewere in the forums on di that will help your game alot.
Smart PLay/Mindgames: this is harder to develop then technical skill, try grabing more often using empty jumps wave landing and so on be creative.
Lastly attend Tourneies: It will get you better quickly and you'll learn lots of new stuff.
HOPE THIS HELPS