More than one tower in that pic, Urist.
Let's start with the tower that we're granted, then. The count has just jumped to "antagonistic" in the player sheet, so getting something defensible fully done is better than starting everything right now. The tower should overlook the riverbank and be slightly downstream of the town. Big enough to provide our lodgings and administrative functions in peace-time, and in war-time garrison 50 men with victuals for 6 months. Eventually, this tower can anchor the town curtain wall like the Tower of London in this
pic, being the endpoint of a curtain wall around the landward edges of the town.
River Dredging: Commission barges at the shipwright, and raked sledges from Wood.
Gallant Deeds: Don our steel plate armor, mount our destrier, take Alan, our new groom, our best rangers, provisions and field tents, and then ride south, staking out various bridges and crossroads, challenging all comers among the ranks of chivalry to a passage-at-arms lest they esteem their lady loves to be far less fair than our newly-wed wife. Return and regale Marna with tales of our gallantry and men overthrown in her name. Make babies.
I think we should focus this month on spending time with the wife.
Marna wants a man that is dynamic and full of chivalry, not a mooner. We can hit her up when her earth is loamy, and be about our business otherwise.