Looking good, one thing, the tail seems to coil alot, jus saying it may become annoying when it gets to skinning and weighting your character if you plan to as the lightlyhood is that alot of the verts on unwated areas my become bound to some joints. Yeh i would try and focus on the outline of the model.. if there is detail you have added that doenst make too much difference to the outline then there is excess geometry.