It still sounds small and one-dimensional.....but now with lots of reverb. The reverb accentuates the sibilance in the vocal which creates a not-so-pleasing effect.
Like I said before, reverb isn't the fix. There's something happening in the mix that's killing the space and clarity. I suspect it's compression. Let me see if I can explain........Imagine you have a band in a room. There's space between the amps, drums, singer, etc. Not necessarily reverb or panning, but space. Air, if you will. It creates depth and dimension.
Now take what you have here. They way I envision it in my minds eye is that you took that band out of that room, and drew them on a piece of paper, stuck it on a wall, and that's where they are now. You drew them seperately (panning), but they're all on the same plane. There's no depth or air between the sounds. It's all coming at you on one plane, flat as a board. That's usually a sign of bad or improper compression.
Does that make sense?