Uhm, depends on what you mean by 'commercial purposes'. If it means you'll be reselling it, hell no. If it means you'll be using it as a background pic or something with credit where credit is due, we'll talk about it.
I greatly appreciate you asking first! Sorry it took me so long to reply, I don't often check deviantart anymore.
Mmmmm... Mehthinks we have very different monitor types. Every time you criticize my work, I find it to be usually about some color, texture, or lighting out of whack, and I look for that, but usually cannot find what you're talking about.
You probably use a PC monitor, and take it from me, there's a big difference in the way color is handled going from PC to mac.
Makes me wonder if I should develop on a crappier monitor. I might produce better work, plus it would look even better on a mac screen. x)
As for what you're talking about here, there is a glow from a glare filter applied during the composite stage of the render, and everything gets a little brighter than it should be, yes, but it produces a nice effect. It may not be as bright in the cabin as it should be; I turned the lighting down to keep it more dramatic. I only added the above lights to give more interest to the piece. Also, the bump map looks fine on my monitor. I've seen embossed leather before, and it really does look like that. *shrugs*
This does present a problem, however... It makes me wonder how critiques are handled at Ringling between different monitor types. And how the heck do they solve the problem of differences in color handling?