There is a brand new Infinity sectorial army coming out right now, and it is the USAriadna Ranger Force sectorial of Ariadna! These models are available for pre-order now, and will be available at GenCon this week.
The Hardcase Frontiersman with tactical bow was a July release, so is already readily available and does not come as part of the USAriadna starter army pack.
The blue seen here on his "Freedom Shoulder" and in various other details on this army was based with VMC Prussian Blue 051, highlighted with Ultramarine 055 <> White. Shading was applied with Dark Prussian Blue 050.