It seems like all you did was take the MIDI and channeled them through higher quality samples (like Nekofrog said before... and I know you didn't, but that's what it sounds like)... It sounds nice, but it also doesn't sound THAT different. I listened to anxious heart... the only difference I could tell was that the instruments were a bit higher quality than in the game. So what if you composed by ear? You didn't compose anything, you wrote down exactly what you heard.
Nice work, but it doesn't sound like you much effort into them. I also noticed how you're ignoring everyone who says that even though you're using a program you can still make it sound real...
...it's not an excuse, really. You can never use "I use a program" as an excuse. Just takes some effort. A good deal of the people on this site use programs and can create realistic instruments (I think EVERYONE on this site does), and they're probably using the samples you're using.If you're going for a COVER, I would suggest learning the secrets of how to create realistic instruments out of what you have. Don't use "my instruments are not high enough quality" as an excuse either, because I work with soundfonts (which are the lowest quality sounds I've ever heard of) and I can make them sound realistic.