I listened to all four of your songs. (I just installed a new cable modem and now have a high speed link so I can listen to a LOT of music.)
I liked your material. It reminds me of Everlast, which I also like when he does some of his more melodic stuff. Anyway, here are some suggestions, that IMHO, I would like to see you try.
First, you are using a lot of effects on the vocals and I think that running the vocals on Revolver through a De-Esser and tapering back the effects would make the words more clear. The vocal hiss is distracting. The acoustic sounds a little thin, but there is good balance between voice and guitar until about 2 minutes in, when it speeds up and then the guitar seems to saturate the mix and steps on the vocal. Overall I liked the song and would encourage you to keep it guitar only, forget adding drums, you get a nice percussive effect from the guitar, why mess it up with a hi-hat?
On Peace, another good song. I would like to hear the vocals a little higher in the mix. It sounds as if you used multiple tracks on vocals, it would have been nice to try panning the vocal tracks a little wider. (Again, just my opinion.)
Funny How the Mind Grows came across very muddy on the bottom end. It could have been the software that you used to make the MP3. I've had this problem with some of the "Freebie" MP3 software.
On In Me Again, this is a really good song. The only thing I would suggest is that if you do another mix-down, try to get the volume on the mix with compression and don't normalize. Some of the software normalization tends to step all over the midrange. I don't know why, but it seems to me that it is a problem.
I think that you have a lot of skill as a song writer and have a good commercial sound. Your voice is good so don't use too many effects. Let your natural voice come through as it makes the personality of the song more human.
Keep up the good work.