Not a unique solution. There are at least two compass point clues that could also go in first names, one of the colours could swap with one of the names, another name with ha compass point, etc. etc. Must be hundreds, at least, of possible solutions.

I agree with Ace - some of your answers are interchangeable between categories. Russell Square and Bethnal Green could each go in the forenames category or the double letter category.

I like it, surely the multiple answers is part of the point of these grids?