I appreciate you haven't 'launched' yet but clients do not buy blindly so we would need to see more.
If you have a good team of coders, they must have a portfolio already made. This portfolio would not need to expose anything about your new launch because it could be for work done previously but, without it, there isn't really anything of meaning in this thread.
The image you posted was just that - an image. It shows no skill in relation to web page building and so is of no benefit in this thread (yet). And the link to your own website page shows no following of semantic or up to date web page coding. No doctype. so we have nothing with whicvh to make us take a leap.
The link to your existing client is just a link to a domain registrar holding page.
Please do not think I am flaming you. I wouldn't do to otehrs what I would not like myself. But you have created an interest which is in danger of crashing because what little we do see, doesn't actually look as good as we expect from your OP.