I think you should get some lower costing creatures, like a couple of elves maybe? also, maybe some enchant lands, like market festival, fertile ground and many others have the same basic ability to give you wichever land you want. Might want to pich in some artifacts to give some lands, like a sol ring, manalith and a darksteel ingot. besides that, I like some of your spells, but I would replace rampant growth with a harrow, so that your lands would come back untapped and if you have maybe two of the ame lands, you can sacrifice it and get two different instead. There is many cards that advantage you for having many colors in your deck, I suggest you check some out, I cant think of some from the top of my head but I remember having many in my own 5 color deck. Anyways, hope this helps, and have fun playing :)

bytt ut mye av landene med gates eller scry land, mye lettere og få forkjelllige landtyper