These look promising. I think that finishing the basing will really bring these minis to life.
I do, however, recommend against adding basic flock to the bases, as it doesn't always look great and tends to fall off over time.
Instead I recommend static grass, or even better, premade grass tufts. Gamers Grass sells patches 2 mm tufts which work great as basic ground cover. Add to that a scattering of taller (4mm or 6mm) tufts of different colors and maybe even some flower or bushes tufts, and your bases will look great.