You have mastered the art of archery. and now you work on making your arrows better by customizing them.what you lack in melee combat will not matter when your enemy is getting a face full of arrows

Improved range

Your long range with longbows is 650 and your short range is 200.Your long range with short bows is 400 and your short range is 120.

home made arrows

You know that there is no other craftsmen who can make your arrows the way you want them.  You realize you must learn to craft your own arrows. gain proficiency with tinkers tools and poisoners kit. in addition you  also learn how to make unique arrows to give you an advantage on the playing field. You know how to make these arrows:

• explosive:   Your explosive arrows deal 1 piercing damage to who ever your arrows hit 2d8 fire damage for anyone within 5 feet and 1d8 to anyone within 10 feet
• restraining:  this arrow has a tip that burst open into a bunch of metal cords that wrap around whoever you hit and knock them onto there back   
• injection: You can put poisons into this arrow and it does 1d4 piercing damage plus whatever poisons you put into it
• roping: this arrow has a rope trailing behind it and you can use it as a grappling hook or zipline

rapid fire

you can fire 2 shots per action but you cant use it as a bonus action

note :  you can fire three arrows at level 15 and four at level 20

Superior range

Your long range with longbows is 700 and your short range is 250.Your long range with short bows is 450 and your short range is 170.

long range pro

you don't have disadvantage on long range bow shots

improved critical

you make critical if you roll a 18 19 or 20