How do you decorate your place, what kind of style, colors, and feelings? That will greatly influence the type of door you might want. Also, think of your budget, and whether you want to install it yourself or hire a professional (you don't need to tell us, just keep that in mind). Then look around Houzz, in the products page, they have lots of interior sliding doors and hinged ones, from elegant frosted glass in a dark wood frame, to rustic reclaimed wood planks. You may not want to purchase that exact model, but it might give you a better idea of what would fulfill your airflow needs without sacrificing style.

the back wall panels look like ikea besta doors. the hanging cabinet could also be besta boxes, but with customized doors. the console in front of it, you could get a similar look by using a malm console table and cutting it to height. from there you'd want to use a couple of besta cabinets to create the closed off storage. the low bench could be made with plywood and then stained or painted to match the finish of the malm/besta combo you choose. besta cabinets :: http://www.ikea.com/us/en/catalog/categories/departments/living_room/11794/ malm console table :: http://www.ikea.com/us/en/catalog/products/80196480/

I know all the houses in side would be beautiful, but went with the last one as the tiles outside give me enough info to have an idea of how beautiful ( if not beautiful) at least layout wise and material wise, how it would be, Now, can we see the inside please? hehe*

I reckon you dont give much importance to vastu as cook needs to face east, entrance door could be north etc; Anyway apart from that if I were you, would just have one bedroom in the g floor and use the first floor front garden for a bedroom instead, create ensuite in place of the first floor lobby or a skylight, any bedroom door should not open from a kitchen (north east ground). The ground floor living dining also needs much more natural light.