I don't think 6 sconces are too many and your placement looks fine if that's your final furniture arrangement, but I wouldn't put them in yet. I love sconces, but they can make future furniture arranging more complicated. I'd put them in after your furnishings are picked and arranged so you aren't stuck looking for pieces that work with your sconce placement. Also, it might look overdone if your chandelier and the sconces are too matchy-matchy.

This will help get some light into the middle of your space. http://www.westelm.com/m/products/overarching-floor-lamp-antique-bronze-w890/?pkey=cfloor-lamps You could also do end tables or a console behind the couch and place table lamps on either. It doesn't look like you have any seating near the edge of your space and your existing lighting seems to be positioned at the edges of the room. So I'm not sure if sconces would help much.

I love your wall color. A green print bed spread with yellow and purple colors would look great with your wall. Can you move the mirror/night stand to another wall. It looks crowded in that corner. Then mirror glass side tables with drawers would really sparkle against the purple wall. And then art on the walls.This is not a bedroom but you can see how green, yellow and purple go together.

Hi Nishi, Beautiful furniture and a very cute cosy nest you have. To begin with replace your existing coffee table with a hard wood simple coffee table. Replace your cushions with an assortment of pink, turquoise and golden yellow in different sizes and shapes, this will add some brightness to the room.Replace the pictures on the wall with a big mirror as per the wall size and add a nice frame to it. On the shelf on the picture wall place the candle stands currently on the centre table. The stools can be replaced with a nice upholstered ottoman bench in a printed fabric as sofa is plain. Cover the entry door with curtains as well so that it gives an illusion of a single wall behind. Since the wall behind the bench is already textured do not put anything on the wall. Remove the white bench there, instead put two big white teracotta pots there of different height and put bamboos on it. Finally put a blue/brown shaggy rug below the coffee table to complete the look. Hope you find the suggestions useful. Also you could put a few glass shelfs on the wall behind the 3 seater and place all your small knick knacks on displayLike how I have done on my wall