Similar stone surround with dark wood ...maybe use the same stone from outside the house?

This is only to show how shelves can be built around a window, but that's not where I would put your desk.

Dearborn Cabinetry

tailored cushion for bench

reading nook - I would just need for that drawer to pull out as some sort of ottoman

office nook

in place of bedside tables

Sherwin-Williams Paint Colors. Sherwin-Williams Oyster Bay SW6206. The paint color for these cabinets are Sherwin-Williams Oyster Bay SW620 #SherwinWilliams #OysterBay

The Reading Nook

Dearborn Cabinetry