First of all, try to keep it in a certain format. The way you are going now is Expanded, and in Expanded you will face nasty decks. In this section, Lothlorien, you will find the different formats and the rulings, read them carefully.
I don't know which cards you have, but this seems a bit of a mixture of what you have, rather than a focused Archery deck. And imho you need a focused deck when it comes to archery. It is often the case that when you play archery, the companions lack the strength to fight. So if anything survives archery, you can be in trouble. Good archery cards are:
Elven MarksmanshipNockedLegolas' Bow (shadows one)
Rumil, Silvan ElfOrophin, Silvan ElfTake up the Bow (very good, to deal with a minion that has to much vitality)
Eowyn, LoI (to deal with minions that make it to the skirmish)
Arwen, QoEaMSword of the FallenWoodhal Elf (to draw cards)
If you go expanded, and add cards from other sets, try to fit in stronger Elfs. Lose Gimli, ditch
Severed his Bonds, replace it with Tale of
the Great Ring, or
Bounder, cause you can't cancel the RB skirmish.
Try to get those cards, some of them should really come cheap, maybe people are even willing to give them to you, but post your wants! Keep it up!