Uh.. Well it depends on the style, and it depends on the Pokemon. Once I've got the hang of what the Pokemon looks like, though- assuming I work nonstop:
-BW (Salamence/Charizard): like, two days with ballpoint pens, and maybe... 2 hours with markers? One?
-The outlined coloured pencil detail style(Uxie): Couple hours. Lineart-thickening takes much longer than anything else.
-Pencil(otherCharizard): An hour or so.
-Realistic coloured pencil (which I don't believe I've posted, just means there's no bold outlines): also about an hour.
In short, really not too long, at all, since I pretty much have all day to sit here. Backgrounds complicate things though, assume the time goes double for those.
I totally want to, there's just rules about bumping older threads (hence 'commenting on the ones that've bumped'). If the rule means years-old or something, let me know somewhere!
My critiques on your art will be honest! I'm not mean about it- or at least I don't think I am- but I won't lie to you. As a result, I'll always hide-tag my critiques (don't be nervous because it's hidden!). My praise, however, is also honest, and I'll never give one without the other.