I like what you're doing however I do have some issues with the piece, firstly the background makes the image look somewhat odd, I understand using a scene with a similar settings is good to set the mood and establish your light source but try to just brush in some rough backgrounds yourself and see what you can do.

The second issue is some of the anatomy in your figures, overall it is clear what the characters are doing and it comes across well however the poses look very stiff and disjointed. The woman on the left is meant to be in motion of a heavy swing if I'm right? however her body language and stiffness makes her just look rigid and emotionless, try exaggerating the poses some more, make them bend and curve more, also the arm on the woman's right is very out of place, if she was swinging a bat with enough force to break it then both arms would be outstretched rather than just one, try practicing the motions yourself when drawing them to get an idea of how your body would work when performing actions like swinging a bat.

Please understand that this critique is not meant to demotivate you or harass you in anyway, I'm simply trying to offer my view on what could improve your overall image and skill, I hope some of this helps.