My initial idea encompassed all types of businesses as the target users of my app; however, upon further examination, it seems that it would be a lot to undertake, so I will focus my idea on creative/design businesses only.
This will provide a more specific target audience to look at and will be easier to create content tailored specifically for them.
I will also change the purpose of the trade and barter feature from trading unsold goods and slots to simply trading projects or skills.