Why did you choose the name Linkush? I haven't checked the product in detail, but the name is very generic, but could be wrong and just doesn't got it right away.

From a design perspective, you can improve a lot with little effort. Your navbar/identity and logo is not aligned correctly seems off. You could also optimize your navbar and actually put stuff in there...seems empty/wasted space.

Play a bit with typography/alignment/layout. Don't be afraid to be bold and go large. Keep it minimal. What works for me, and I am not a designer, is design one prominent element (navbar? form? call to action?) really well. Spend time on basics like logo/typo/colors/spacing/fonts/etc. Once you are happy and are proud of your minimal finished prominent element, you probably found a style/direction that will guide you and the rest will come more natural; easy and much more fun to build.