Rather than rehash whether £30 shoots are a sustainable business model.. I'm going to be blunt but the other's comments don't seem to be sinking in. My apologies in advance, I'm genuinely trying to be helpful.
Your biggest problem is that you can't yet see the difference between what you're able to produce and what the pros can produce. You really, really need to develop your self-critique skills. I'd suggest spending some weeks going back over the critique threads on this forum and then watch lots of critique videos - e.g. fstoppers, Zack Arias, Dom Bower, Karl Taylor, Scott Kelby.
Your second problem is consistency. You need to be able to churn it out on a bad day in s***ty conditions with an uncooperative subject.
In Alexander Technique-speak you're at the unconscious incompetence stage. You're not very good and not aware of it. There's a long way to go to achieve competence, and further still to get to unconscious competence.
One last attempt..
On the positives:
- You're getting the exposure about right. Mainly. I don't know how much post-processing it has taken to get it there
- You seem to have got the hang of the controls on your camera
- You seem to be managing to communicate with your subjects and capturing a reasonable expression - but they are your friends
- Your framing is ok
The negatives:
- Your use of light is poor
- Your focusing is off
- Your composition & use of location isn't great
- Your WB is all over the shop
- Your post processing is poor
- Your posing & directing is poor
- Your story-telling is poor
- You don't really capture any kind of emotion.
Now do you see why asking a bunch of pros - myself
not included - whether you're ready to join them and then ignoring their feedback might irritate?