Design an Electronic Direct Mailer (EDM)

I am running an online education platform where students can engage homework help on an ad-hoc basis (whenever they require). I need an eDM as advertisement. I have a layout in mind which is attached. I am open to suggestions on how to improve. Please note my audiences are students (15 to 18 yrs) and parents (40+ yrs) from Singapore/ Malaysia/ Indonesia. The requirements are as follows: - Design must be pleasant, eye-catching and neat, designed for the target audience in mind - Graphics/ Pictures provided must not break any copyright law (All graphics involved must belong to you or procured by you for this project) - It must be compatible when viewed on phone, table & computer - 100% original content - Written in proper US/ UK English and grammar - All rights will be transferred to me once payment is made - All working files to be sent to me upon completion of project