Covered Bridge HDR

[cosmonaut]

This is my first real attempt at an HDR. What could I have done to improve it? This is three exposures. It is a little dark because it started to rain as I took this.
Cosmo

 

[DeepSpring]

I don't know much about HDR to help for improvements but maybe just a little overal lighter. Or darker with the tunnel standing out more.

 

[outlier]

I'm not sure this one is working for me. Maybe if it was cropped tighter to the bridge.