So, started playing the druid and am stocked for this. Loved playing them in PnP, so excited to have this opportunity. Some suggestions (I'm only lvl2, so there will probably be others later).
Show a cool down for shillelagh. I know the weapon glows, but sometimes, the glow is a bit obscured, so having an icon like what we have for concentration spells would be very helpful.
This is a general request, but stemmed from starting the druid. Allow the player to choose their starting equipment. (use the PHB as a guide) The reason for this, is whenever I play a druid in PnP, I choose the leather armor, club and shield. Shillelagh is a powerful spell at 1st level, but having a 13 AC and using a quarterstaff really isn't affective. Thorn whip also isn't affective at 1st lvl since you need to keep from getting squished. Not everyone would agree, hence the ability to select options for starting equipment at the beginning. This would also allow fighters to start with a shield or no shield based upon how they like to play.
Also, from and RP perspective, allow the druid to follow either a god (Silvanus or the like), or follow the Old Path. Viewing nature in it's entirety, and the Balance, and not assigning any particular god to their faith. I tend to play Circle of the Land druids, so I like the spell casting and support aspect.