For the compositions themselves, i really like the tracks, but felt that some instruments were a bit too in the front .
For example, in the second track the vocals are a bit too dry/in your face at the front so the great arrangement gets totally lost in the background. I think if you try to mix/produce the vocals differently so it blends with the ensemble, the track would improve quite a bit, since that was really my only "gripe" with it 😁.
I can agree with Kale that singing from the belly would get you more power to your singing voice!
Also keeping your mouth open wide as possible while singing, for example by smiling, helps with projection too. Learned that from a singing guide series somewhere, and found it really useful.
Another posture tip I learned a while back was raising your hands up on top of your head and relaxing your legs a bit while singing helps too. Video where i got the tip from
Placebo or not, I've found those to help me get better results while recording vocal stuff.