Thinking about some home decor updates

This weekend I've been thinking about changing some of my home decor. Especially in our living room and bedroom. Adam has given me A LOT of freedom in the decorating and arranging of our space. Honestly, I love our home and he says he always feels comfortable. But lately I've been noticing just how feminine it is. I love bright colors and a lot of white. That's not necessarily feminine but there isn't really much to say, "Hey, a man lives here too." So, I think if I can just add some masculine elements to balance out the feminine, well that would just be perfect. Of course, whatever I add needs to cost next to nothing. :)

This picture is my ultimate inspiration for our home. 

It's just an rich mixture of femininity and masculinity.

The color palette is both familiar and unusual.  

So the above elements are what I'm thinking. FYI: I am loving navy lately.

1. Navy blue curtains seem like the simplest, most straight forward way to add a masculine touch. 
2. A chunky, dark colored throw
3. I would do this in a different color (navy or charcoal) color, but this DIY project would be a good update for a lampshade or two.
4. A striped area rug would be great in the living room. This would definitely be a DIY project if I could just find the right rug (read: cheap, flat woven, and large)
5. Non-feminine pillow(s)
6. Art with a geometric feel. Abstract art is my favorite. So I'm sure I could come up with something.

I love a good project and I'm looking forward to the challenge of updating our space for a price we're willing to pay.