This is good stuff, I'm loving the new talent we're seeing on this forum as of recently. Best of luck to your brother and his band, both songs are good...the first one was obviously catchier but the guitar got monotonous fast, the riffs stay in your head and you wish to hear a change, but it doesn't come. Luckily the second song went a lot better in that department since the riffs were there to back the licks up.
edit: after rereading what I wrote, I see it didn't seem fair since the songs really are quite good, I didn't want that to get past you, wish your brother good luck