i think you should stop all this and spend a solid 6 months studying hard. you dont have the tools to pull this off well. i don't mean to offend just honestly your wasting your time. it's like your deciding what curtains you want in your new house, but your standing in an empty plot with no planning permission, blue-prints, building material or builders.
get your Sketchbook out order some Loomis books and a good perspective book and study them solidly. Its boring but your going to need to work hard if you want to improve.