because shadows are over-all, tis would be a difficult image to balance....nice shot tho' all around.........if you have a copy of lightroom or access to it you may try using the filllight tool to soften them if you chose......another tool with some control is in ps2, adjustment layers>selective color........combined with hue/satyuration this may be able to lighten shadows to some degree, however, you will need to make selection and apply adjustmments, feather, and copy and paste....then play with opacity. that should allow some lightening while maintaining overall tonal control on the rest of the image
good luck........if you are interested in digi darkroom stuff try
MacDermid Incorporated
good luck