Here is a good seed for everyone's exploring enjoyment. It has 4 villages, an igloo, a desert temple and 2 mooshroom islands on the first map. Best way to create it in my opinion is small then expand to large. Also there are several diamonds to be found in all of the chests and minecarts. 10 between the temple and 2 blacksmiths.
I'm not sure if you have expanded the seed before the latest update, so not sure if it will effect the location but i just expanded mine today and there is a monument at x:-2359 z:-1770. I hope this helps. Glad you are enjoying the seed.