Hello Naudae, the dress will covers the knees when we stand up, but we can actually adjust the length if you requested.  The bow knot size is just like the product photo proportion, but we actually we adjust the size for you if you requested.  The hat is not included, but if you want it, we can check if we can make for you & if it occurs any extra costs.  Our tailors are all very professional, so, actually we can change the color/design/length/costume accessories for customers.   o(*////▽////*)q