Most free or "included with" software plugin reverbs are not the best. Hardware reverb is pricey and so are the nicer plugins
The vocals are good, especially during the verse. I'm OK with the vocal reverb. To me there is too much reverb (unless it is all delay) on the guitar. Not sure why the volume is jumping around slightly at a fairly high frequency (due to a compressor?). I like most of the melodies. Nice song overall. Perhaps you could review my music at this link: