Probably ok.
Couple tips.
Make float 3 is pointless (extra cost for no reason) just make a float 3 parameter to use. You can manipulate the values individually anyway.
DistanceField gradient requires the project to have the proper settings. Remeber this if you ever move the asset.
Generally after you add, multiply etc. Before you feed the value in to a field that uses normalized values you should clamp the values out so they do not exceed 1.
I think this is applied to your vertex, so this wouldn’t necessarily apply.