I agree with Scott's points. Here's a little feedback from my perspective:
My favorite of the five posts would be your sound on the third tune which you titled "Pure chest voice".
Your tone and your voice in general sound the most natural and genuine on this clip. It's right in your range and is well-grounded. I like the delivery. Great tone, spot-on pitch, and heartfelt.
The clip titled "Light Head Voice" seemed to be more of a light chest voice until at 1:24 and then again at 1:38. There you are most definitely in Head voice. You're using a hooty head sound with a lot of air. It's a bit flat there. This kind of head sound can be difficult to maintain intonation, due to the difficulty in supporting something that airy and light (and a little low for head... low head can be difficult to fine-tune and maintain the pitch). It does sound like the air is blowing up the uvula, however it could possibly sound more effective and in tune if you could put a little light vocal cord edge into the sound. You're coming closer to what I'm describing here in "Change is Gonna Come". Your highs in that clip have better intonation and very little, if any, hoot/flute sound.
Kudos to you, freedom for submitting these demos. If I recall correctly, you are away at church camp and have no access to a computer, and these are cell phone recordings, relayed (by kokonuhtz) onto the forum here... great teamwork, guys, and what dedication!!! Recorded in a hot bus, with hornets buzzing around you!
We can all follow your lead to do everything we can to keep striving to improve, without excuses for "not having time" to do our workouts, studies, and demos!!!
Thanks you guys for your comments and help.
The "pure chest voice" is also the best place to "work" and branch out from there.
You are starting to really "open up" to open throat and I can hear you are also starting to maintain good support.
Work this sound first for a while to really strengthen it. Then do your upper mid voice (as high as you can safely go) in pure head voice every other day of your workouts using a very bright (not flutely or "pillowy" sound as that does not grow falsetto / head voice).
Once you can get a nice bright timbre, you can start to "fuse" this sound with your chest workout. (make certain you do this without hearing the speed bump / yodle at the break / passaggio).
Start lightly and then build up strength gradually.
You will find that you have "fused" the mid voice so well together that you can sing light or heavy through this section and create a mix of how much chest or head you want to add into the sound.
This happens over time.
Please don't rush this but be consistent. Success will come.
(as far as the nasal sound Scott mentioned, this is certainly one approach. I have found that by maintaining open throat first (shooting the sound up into the back of your head...so to speak) and THEN bringing the sound down into the front of your face using Mask, that the sound stay more round, phat and robust and vowel transitions are easier for a "bigger" sound. If you are going after a "Stevie Wonder, Lou Gramm, Axl etc. sound" using the nasal cavity allows you to close down the sound quickly with small, bright vowel modifications and forward facial resonance)