Terrariums

I have been trying to make some terrariums lately for my space but with mixed results.  I don't think I'm particularly good at designing them.  I even threw a "terrarium making party" and even though I had a great time, I wasn't super pleased with how mine turned out.  Have I mentioned that I'm a perfectionist Virgo and don't even want to try and do something if I don't think it will be perfect? 

Anyway, I made another last night and liked it a little more but am still not completely happy!  I think I need to find a much larger container and look at some photos online of terrariums I like.  Eventually I'll get there, with some help and inspiration.