if you want to be able to make real nice small details i would advise this i always use it for small detail on stuff
https://www.amazon.com/Army-Painter...../dp/B003P5HML2
im really a big fan of greenstuff i even got a dentest tool set for real small work and details

1 of the big advantages is when soft make tools wet it dont stick you can sand it and cut it aftarwards and it ends up as a watertight layer
there are all kinds of aplications for it i use it in small repairs filling gaps in moddels changing moddels even things like faces
i even make with plasticcards the masters that i use to cast metal later from i use those in a mold cause i can make a lot of details if i want
and there complete tutorials about greenstuff on face book alsays nice to look up im using it now for my main six mlp kinky models
and thats not even the finest detail i can work on like this the original is made with plastic card and greenstuff
http://www.furaffinity.net/view/23827768/
and thats after casting also nice if you want a complete metal model make it from modeling wax :P
nd find some 1 that can cast

Impessive!

i also love to help fello hobbiists that build stuff:P
i was kind of well known modelbuilder for warhammer once some builds were 4 difren models mashed to 1 big model
like i used a ork battle wagon a ork buggy and 2 other models for parts plus plastic card and greenstuff i made a Dukk-w
ww2 amfibian car
or made a dreadnought from 4 other dreadlike models
or the plane im working on buiding it from 4 kits

Nice something to keep in mind.