The Falcon needs to learn how to dashdance grab...
Anyway I think the Falcon matchups were very predictable. But there really is no point in telling you to change anything if the Falcon will repeatedly techchase towards you and jump into you while your attacking. What you did worked, no reason to change it. You may want to try doing different things in situations that you know happened a lot. Like he likes to shffl into you without paying attention to what your doing, so just wait for it and uptilt him instead.
As for the Peach ones well, the Peach really didn't know how to kill or edgegaurd Marth at all. He/She needs to find or ask for help in that regard. You edgegaurded fine and spaced pretty well.
Overall I think you played fine against those players. But a lot of your attack patterns and strategies were really straight forward and could have been avoided. You won't learn to vary it up or change your tactics until your opponents get smarter at reading your approaches and defensive strategies. You shielded a lot when they approached you, when you dashdanced you typically dash attacked or shffld unless you were following from a tech chase. The problem is you can easily just say you didn't have to get any more advanced because they weren't even close to beating it. They needed more tips and advice than you do at the moment.
