These are just small suggestions, but I still wanted to see if it's possible to add them
Uncut Onyx are untradable. I was wondering if you can make them tradeable.
Magic Short Bow costs 1,173 Gold and Magic Long Bow costs 236 Gold. I was wondering if you can change the prices on those. Dragon weapons are at least 100k I think Magic Short bow should be at least higher, but maybe not 100k. Along with people who Fletch can make some money selling their bows.
Farming
I was wondering if farming works by using a watering can on a seed? If it does is it possible to add a water can to the shops?
Prayer Potions
Prayer Potions are basically more wanted then food for most cases. For something that helps prevent getting hit or increases your damage, I think they should cost more.
Now I am not saying something like hella expensive, but a little increase to where it's worth it.
I think Prayer Potions should cost the same as they do in Runescape, which is 10,000 per (4).
That might be all I have right now.