Nice work so far.
The bagginess seems alright to me. Details are not quite crisp yet, but you will improve.
What made a huge difference for me was watching what other sculptors do. I caught up with Dave King at a con' once and he really showed me a thing or two about sculpting!
First thing I would suggest is to make sure the blue and yellow components are blended together properly.
Secondly, what kind of tools are you using?
I use a dental tool and a manicure tool, so nothing too special, but a rubber tool would be indispensable to get smoother results. I made one of these on my own but it broke.
Also, are you using vaseline to lubricate the tools? Another indispensable addition to your sculpting kit.
I'm not amazing, but this is a pic of my sculpt just to prove I'm not full of wind. I think it turned out okay:
(Painted by Black/Greywolf)