In making an illusion for a wider room it is better if you add up a thick horizontal strips on your walls. This will create the illusion for a wider room without making it physically wide.
Yes. Small waist make your hips look wider. It is relative to each other and to body also.
Make another room and take out the wall
manciniracing.com has what you need to do the job.
Darker tints will make a room smaller.
Verticly striped curtains will make a small room look bigger.
By cleaning it
It can do but it is all in the mind as you know. The same applies to wallpaper. you hang wallpaper with narrow stripes it will make the room look smaller. hang w/ paper with wide stripes it will make the room look larger.
Wider.
no
Female. After puberty the female pelvis is wider so there's room for a baby.
You can make your room unique by puting your favorite fabric pattern over a bulliton board
What will look amazing to you may not look so good to others. As it is your room and you will be living in it, just decorate it the way you like it.