As you asked for it, I give you my personal feeling: no. On the other hand the question is not precise enough. If you intend to work on as modeller or graphist for game industies you'll have to deal with high end softwares such as XSI, Maya, 3DSMax, Lightwave or ZBrush. Certainly not with Poser. If you want to work as a professional illustrator, here, you'll need to master 2D softwares, such as Photoshop or Illustrator. Poser alone will never be enough to create a professional work. More precisely about your work, I would say (but it's just my personnal feeling)that you're quite far from my idea of a professional. You compared your pieces with other ones here, Ok, but maybe should you look at other sites that show real professional illustrations... But without going anywhere, you already have elements of comparison: Vallejo, Serpieri, Manara, Royo, Rodney Matthews, Julia Bell, Sorayama are professionals. They live with their work. Do you get the same quality in your pics?