Hello.
I would like to present my conception to you.
1. I used mostly white colors because the apartment very tiny. The light color will help you make it bigger .And it will be good if the wall facing will be with horizontal stripes.( wood imitation)
2. I decided to remove some walls in living room, i suppose it was not bearing one - to it make lighter and also you can enjoy the window view when you have a breakfast
The kitchen could be closed area if you wish, you can put sliders doors in the future.The dinning table could be enlarged for more sits.
3.The bathroom was cutted . The width of bathroom 1500 (min. width of bath) .
4. The badroom was a little bit enlarged and have little space for working win big window.
Bedroom area and sleeping are are separated by shelving unit. The units could be empty of filling by bloks from ikea. You can also separate areas by doors-sliders.
I hope i it will usefull for you.
If you have any questions please let me know.