I like my first idea best as far as use of space. I know people say not to put toilets on an outside wall. We had one in our last house in Iowa, but we had 2X6 construction. I don't know how high your window is, but I'm guessing the toilet would fit under there. The shower would be 5 feet long or shorter if you want a wider space to get to the toilet. (kind of tight the way I have drawn). You could do a 5 and half foot long shower and do an angled door at the left end to allow room between the shower and toilet. The vanity would be about 7 feet long, unless you do a 60 inch vanity with a linen cabinet at the door. I would reverse entry door swing if you do that.. The second top right could work and you would still have a small closet. The bottom left plan would require waterproofing your front window. Hopefully someone will give you other ideas. The bottom right plan is bigger, but no closet. Each square equals 1 foot.

Some more pictures; Bathroom 1: Window Extension: Bathroom 2:

My bed is black I’m sorry the pictures are not the best quality. I am actually planning on putting an area rug between the bed and dresser as well. Also my budget would probably be less than 400 for the dresser. I have never seen the spine book shelf but I will definitely consider it. Not sure if room will allow it though

https://www.cooling-heating.net/ Insulation has the biggest impact on energy conservation and these simple measures can make the greatest financial savings: Top up your loft insulation to 27cm depth. Draft proofing (foam strips, draft excluder brushes and chimney balloon). 1. Roof Insulation Insulating your loft to a standard depth of 27cm, which is almost the length of a school ruler, is probably the easiest and most effective way to keep heat in your home and stop it escaping into thin air. 2. Draught Proofing Draft excluder brushes and chimney balloons all prevent cold air from rushing into your home from the gaps around windows, doors, letter boxes and other holes in the building fabric. These are easy to fit as they come with self-adhesive strips. They are cheap to buy and make a noticeable difference. 3, Thermostats and Smart Thermostats Whereas thermometers tell us the temperature in a room, thermostats set the temperature in a room. Thermostats are a more efficient and easier way to control the temperature of your house in winter. 4.Wall Insulation Regardless of how old your house is, the structure or materials used, it is possible to insulate walls to prevent heat loss. = 5. Floor Insulation If you have a particularly draughty floor then plugging the holes and using rugs are quick fixes. However, if you plan to change the floor covers, such as lay new carpet, or renovate downstairs rooms, then floor insulation is ideal.