The Temple to Dirt terrain is interesting, but there appears to be no blend to patch them together. So dont try messing with that
The Bridge on top (#1) is quite blocky. Try to cut and paste random tiles of terrain and see if they look nice. Besure to place the bushes out farther appart so they look realistic, and not like some mutant plant (unless thats what you were trying to do...)
(#2) is to, annoying. You cant join temple with high dirt because there are no signifigant blends. Try attaching normal dirt to water to high dirt, it would look arverage, but if people see it, it looks better than just one blotch of white dirt, then brown dirt, then all of a sudden OMFG!!! ITS GREEN lol (Keep Trying though
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(#3 The Entire Minimap) nice combo effects just fix the few ugly spots on the bases and you should be fine...