No, this is not possible. Firstly, Euresearch sticks to the confidentaility rule. Secondly, a proposal can be perfect for one panel / domain, but not suitable for another one. You have to find your own style for your proposal.
Please note that Euresearch offers proposal reviews and you can contact us if you want to have our feed back on your proposal.
Furthermore, it is always a great idea to ask your peers. Find out who submitted successfully and ask for their advice.