How about a painting on the right hand wall? What is the width between those two doors? Also a rug runner?

Needs art on the walls.

The priorities for me would be richly coloured art and a pendant light that makes you smile. A hall runner is a definite possibility, but perhaps to be considered later, when there is no five-year-old to practise skidding on it.

http://www.lampsplus.com/products/corbett-vertigo-medium-pendant-light__j6251.html

Change the semi flush fixture, add a pop of art or photography, and buy two matching or complementary patterned, colorful rugs, one for front door, and one for foot of the stair. Use a grippy rug pad or carpet tape