Basics first, please get rid of any plastic furniture like that chair. secondly all table tops need to be cleared of little mirrors, table clocks etc. just place three most loved items of your choice ! Arrangement can also be improved the table could come on the side and bed could be centred a bit better (along the window behind it). Walls can be painted a neutral shade like light beige with a rug of your choice on the floor (contrasting- like red so that the pink curtains could go with it)If you could change the curtains then the best option would be to pick a solid colour of your choice and a matching rug (blue, red etc whichever is your fav colour but please avoid printed cutrains)

You list is all "stone" products. Stone products are natural. The durability is guaranteed with stone. Stain resistant...remove marble and granite from your list. Both can stain and etch and both will do this with "flooring" more than they will with a counter top. Gloss levels all change...but it will take years to do it. All stones have maintenance = homeowner needs to work at keeping stone looking good. Stone = expensive. There is no "benefit" for "reasonable" when working with stone. They all cost plenty of money. Stone is expensive. No way around it. If you want "glossy" that doesn't stain for a "good price" then you have forgotten to mention the BEST option: porcelain tiles. Porcelain will do everything you want for a lower price. Stone is expensive, it can stain (especially "oil" stains) it will "etch" or lose gloss level with certain liquids (acid based liquids will do this) and they all need to be maintained and eventually need repolishing to maintain "gloss". Durable is all you can expect out of stone. The rest of your wish list belongs with porcelain tiles.

As far as spacing between the pavers, you want a minimum of 3mm or ⅛ an inch, but the ideal spacing really depends on the whole space and how you want to fill the space between pavers. If you are thinking about pea gravel or sand, you probably want less space between to help keep your costs down and make it easier to power wash. If you are looking to add greenery then more space between the pavers gives you more green, creating a more natural-looking space. If you do decide to go the gravel route, you can apply a clear coat of something like gravel-lok. It acts like glue, keeping the gravel in place. It may not be able to take the full force of a power washing, but it will certainly hold the gravel in place better than not having gravel-lok. If you do want to go for a green option, grass could work, You could also look into small succulents, moss, or clover. With any green option, you will have a little more maintenance in the form of trimming and watering, but the look is stunning! You absolutely can put grass between the pavers. It will actually help stabilize and hold the pavers not move them. (if installed correctly) I would space it 4” apart and use netfin or a similar subsurface drip line to water the grass underneath the soil. This look is probably my favorite but you could also use a crushed aggregate in between too. Gravel is a terrible idea because it doesn’t stay in place. Here are some ideas from our projects of all kinds of paver designs:

tumi ki rokom wardrobe nicho seta amake bolo ta hole sei hisabe bolbo. ami west wall ei rakhte bolbo parallel bhabe. tate ghor boro lagbe. tate puro west dewal ta cover na holeo cholbe. extra je space ta thakbe se tate tumi ekta jute boro gol bag rakte paro to use as a laundry basket ba extra storage. kinba ekta coat hanger stand. options endless ache. tumi tomake tar age amake bolte hobe tumi ki almari nabe. taholei baki gulo se rokom adjust kora jabe. tomar standard godrej ba oirakam lohar almarir depth 22" theke 23" hoi. amader ta toh 22". tate aramse hanger tangano jai. Ami tomake abaro sliding door ward robe nite bolbo karon oigulo te onek jaiga thke + khub chim cham lage. tumi bajare ready made peye jabe banate na chile. otate tomar suitcase are onno lage storage er o jaiga peye jabe bodhoi. eta te jeta hobe seta hoche je tumi je kono jinish jeta sobsomoi lagche na sei gulo bhore rakhte parbe apart from jama kapor. ta hole baire kichu pora thakbe na. tahole dekhbe ghor ta kichi bichi kom lagche ar beshi boro mone hoche. tomar ghor tar ki obostha amake ektu chobi tule pathao ta holo thik kore bolte parbo. se jonnei tomake email ta dilam je tumi jodi ei page pic na dite chao ta hole amake email e pathiye dao. Ami tomar room tar 3-D sketch kore rekhechi with colour scheme. seta tomar email pele pathiye ditam. tomar colour sheme ekta jinish tomake jigesh korar chilo. seta tomake 3-D sketch ta na pathale bojhate parbo na. tumi ghor ta rong korar age sketch ta ekbar dekhe nao.