Hi Daniel some nice melodies happening here, and I like the breezy, early 70’s kinda California sound.
Really? Even the acoustic guitars? Are they Strum Acoustic or something like that? They sound pretty decent.
A lot of great advice given already…so I won’t go over it again… If I may, I’d like to chime in with a suggestion about tuning, though…
Even if you don’t actually learn how to tune vocals, it’s a very worthwhile exercise to look at your vocals in a graphical tuning interface (Cubase? Is it Variaudio?) Doing that can help you be aware of the tendencies you have with regard to sharpness of flatness, pitch drift and so on. Actually seeing where you are out of pitch can help you to become more acutely aware of pitch problems when you hear them.
While vocal tuning tools are pretty amazing these days, they still create very audible artifacts when pushed to their limits, so the best thing for vocal tuning is to sing pretty well in tune in the first place. Just becoming more aware of pitch in general will help you to do that.