This is such a great example! This is something I struggle with as well. I would recommend examining the sculpt with cavity shading turned off, possibly trying a few different matcaps and spending some time rotating around the model. Cavity shading, almost by definition, results in the cavities appearing deeper (sometimes much deeper) than they really are.
Don’t be afraid to really cut into the sculpt! If I’m ready to take a big step I will save off a copy of my current file and rename it something like “<projectName>_resculpt_001.blend” and (because I am a virgo I guess) put the previous files into a subfolder. This is almost entirely a psychological thing – by creating something of a “fresh start” but knowing I have my stash of old files I feel ready to make really big changes.
Another thing I’ve done that helps is to create a “Backups” collection right inside the blend file in which I place a copy of the sculpt in question (among other things). This way, once I’ve made some significant changes on the working version, I can compare the old and new side by side.
Keep up the good work!
