If that saddle hurts you when it's levelled off, then you have the wrong saddle.

Or it could be because the bike doesn't fit you at all.

I mean let's look what you're starting with, a very small sized frame. Then you're adding steering tube extenders to raise the handlebars. You've put a stem with a very sharp rise in that. This is all stuff for a very upright riding position, like a grandma bike.

And then, after all of that questionable attempt to make a frame that's too small work, you then put TT bars on it. Handlebars that lower you and move you forwards. Usually found on low-pros where the rider's nose almost grinds the wheel.

I don't understand why you're wondering what colour accents would look best. The proportions of the bike are both ugly and ergonomically terrible, likely to to make whatever health issues you have worse. It's bad, mate. Get a bigger size frame.