I like the hint of a circle in #16 but not the tail.m I also like the simple font and color scheme of green and purplish-grey. The Amma and Napier might be better switched out so the Napier stands out more. Maybe the white "house" symbol could look more like an "n".
The concept of a circle as a symbol appeals to me but the "N" is not recognizable, re: 29 & 30 I like the lettering on 29 because the Napier Ganda out though I can't connect to the soft triangle.