I'd drop the Arbor Elf, personally. You already have 8 mana dorks
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Welcome to MTG. Always be prepared to constantly evolve your decks, no matter the format. There's always the opportunity for upgrades!The biggest piece of advice I can think of is: Pick a theme. Do you want your deck to strike hard and strike early? Do you want to control the board until you can get a powerful card/combo off? There are many ways to build a deck, and many amazing themes and mechanics you can explore, but building a deck around a single, achievable theme will help your deckbuilding infinitely.Feel free to have a look at my decks for some of the combos you can find and the "general" blueprint for building decks in Constructed (Standard/Modern/etc).
Elvish Vanguard would go well in here and have you thought about Presence of Gond?I've always liked the idea of a Golgari Elf tribal as well.
Haha I've just got Worldfire in there for the rare lolz. Will definitely check out the suggestions though. Cheers!