Paint the roof black with blue,replace the porch,the walkway,landscaping.

What a lovely cottage - ignore the craftsman porch column suggestion - yours are perfectly scaled to your home, though you could increase the charm factor with brackets left and right of each porch post - prowoodmarket.com is a place you can price them. Here's the look - http://www.prowoodmarket.com/products/wood-bracket-04t8.html

I see the new lights along the curving path. You can always cut grass back on both sides of the path and plant something that stays green and sometimes flowers - agapanthus are charming on a blue house. Some flowering shrubs - raphiolepsis are great if they work in your zone . along the front of the house where you've set forth new beds . . or abelia grandiflora

Good looking house, but the porch...i get that box in feeling. Here's what i believe will increase curb appeal and i luv it also BTW http://bostondecksandporches.files.wordpress.com/2010/09/menzoian-front-porch.jpg

And i agree with decoenthusiaste above about adding climbing roses

I was thinking the same thing, a nice railing to open it up