Just some thoughts here, Marina:
1) I always wonder why people put $38 per hour or $26.50 or $41. Why not just say $40 and get it over with. It sounds more professional to me to just say $40.
2) I think the Sun Tzu quote -- besides it sounding like pure jargon -- is a needless distraction. What clients want to know about is you and you do this quickly in your next paragraph "As a business .... " If it was up to me, I'd say ditch the quote which seems to just be a waste of time.
3) At the end you say "I'm not a designer." I know that's honest, but that sentence is jarring, a sudden negative statement after a long list of positive statements. I advise you to scratch that sentence and begin that paragraph with "I work with designers ..."
4) Now this is the main quibble. A profile should do several things. First, it should prove you're an expert. You do that very well. Second, it should show that youi're approachable and this is not your strong suit here.
To sound approachable, all you have to do is open up a little. Just a sentence or two here and there that say something about you. It could be "I like cats" or "I like Mel Brooks movies." What I suggest is just a phrase or two here and there that says, "I'm a cheerful person," or "I love helping others." In your long write up you mention something about working with your clilents and that's a start, but it's a pretty stiff, business-like reference.
5) Beyond that ... your write up goes on and on and on and on. It's very well written and very, very convincing, but somewhere there's a balance. If you hit people over the head with your expertise that much it subtracts from your like-able-ness. You have to sound likeable or people will avoid you no matter how expert you are.
6) I think you could chop out the entire second section that starts with "I do ... preparing ... " I would bet you don't lose a thing by doing that. By then you have already convinced people (me, anyway) that you are a consumate pro. So, you might just say something as a summary, rather than another long list of attributes.
7) Needless to say, it's a very, very competent and admirable profile. I'm just one opinion. These are just points to consider. I hope it helps.
Clearly you have the style and the knowledge to do very well on Upwork. I don't have a crystal ball, but you seem determined and smart ... that one-two punch rarely fails.
Good luck.
