Email Marketing Smarty

Please help me talk about your thinks with this item :

https://www.codester.com/items/33044/email-marketing-smarty.

Thanks for your time

You use quite a lot of times new roman!
Consider changing to Roboto. Your script has nice functionality, but uses quite a bit of open source panels. Don't go with what EVERYONE uses, use what open source software uses, like Tabler. Tabler is a nice bootstrap UI kit, full of free components. Not even a PRO version!
Take what's available to you, not what sounds cool. Be ready to take a risk. Good luck with sales! Cold calling and sales funneling will help. SuperDev 🎉