Your damage is good for now, what you should aim is get some more levels to up that DEX to 90 to get the Heroic BackPack bonus, also getting to level 150 will help you do some instances to fund yourself to high level gears, like Fallen Angel Wings and etc. (some easy instances you could do to afford better gear are Faceworm Nest and Old Glast Heim).
Current unanswered questions:
1- +13 Crimson mace would be better because of the added equip attack but i would save to buy a +15 already i mean why not? Also get some racial shields to use when you need them along your 1 handed weapon.
2- Yes, but Runaway Magic drains A LOT of sp, so you should use it only on tougher mvp's or assuming you wouldn't need the sp anyways or you can pot/leech it back, also RM only procs on magic attacks so you need to use a magic attack to activate it (most used is Demonic Fire) you can get one with Bear's Power if you don't want the SP drain, but BP only activate when you take damage and it consumes a bit of HP when active, so if you don't want to be attacked to activate it and even lose hp too you can go with Lucky Day, that IMO is the best for overall situations, since it doesn't use HP nor SP when it activates and it also activates when YOU hit so i think it's better, but the damage increase is higher for RM > BP > LD, so i would say that if you don't mind the sp go with RM, if you mind the SP but don't mind the HP go with BP if you mind both go with LD 
3- Depends on how much +Atk% you already have from the other gears and what +stat, Emerald Earrings give you +5 int so i guess that's not bad, but what could be better for now would be a Fairy Leaf Powder, since it would stack with your HF's EA2 (could get EA1 in other gears in future, also can change the EA2 gear but don't overthink it now) buy you would need to get your dex up to 100 to get a bit better bonus, just a matter of leveling, it's pretty easy getting to ~150 nowadays and it really helps you in stats/hp/sp etc.
4- I'm not a fan of Elemental Tights for Gene honestly, if you want MVP damage, go with Flame Dragon Armor, since you're using AS card in weapon and have Ranged damage in other slots even +7 FDA would beat +9 Elemental Tights, but always aim for the best +9 FDA for bosses in general is pretty good, for non-bosses just stick to Evil Dragon Armor to get that good HP/SP leech, pretty good since Cylinder takes RWH slot away.
5- Could get more STR or DEX depending on what you're aiming for, i would get DEX to at least 90 to get HBP bonus, but if you decide for the Fairy Leaf Powder, get it up to 100 then it depends on you, can get more STR and INT for Acid Bomb, maybe only INT for better Cart Cannon, or Luk if you gets better ATK/MATK per point, Agi if you want to be spammy on Strings, depends a lot on gears and what you aim with your build, for now i would focus on getting to ~150 to do some instances run to farm a bit of money (you can do it even before on levels ~140, just need to study the instances and what you need to beat it, but 150 is surely easier) , other thing you can do are the 16.1 banquet quests, not only you farm some money through the Honor Tokens but they also give a good amount of EXP.
Overall get some levels, farm to get better items, also get shields 
@Edit: Removed some weird spacing in my text lol
Edited by Hirumminho, 20 October 2017 - 06:26 PM.
