Just listened to 'El Samba' . Sounds fine dude. I think the main thing to work on from here are your dynamics whilst playing lead. It sometimes seems that you are playing each note exactly the same way with the same inflections, which gives a sort of flat feel to the music.
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Miracle Blade 4: Gibs on touch.
They're all good. The composition the playing all very well done. I see Julian's point on El Samba. Echo'd Reflections has a very relaxing feel to it but I think a nice mellow lead guitar over it would make it pop.