No, I'm specifically referring to the Android experience. Everything from the colour schemes to the animations to the aesthetic of the apps it attracts. Just doesn't compare to iOS.
That's not how Android works. Because Android is so open source, you can customize it to your hearts content.
On a basic level, you can download a "launcher" from the app store such as Nova Launcher. FYI a launcher is basically a homescreen replacement made to replace your default homescreen UI. Launchers either come with a pre-designed UI, or a barebones UI that you can customize from scratch. Heck, I think there is even a launcher in the play store that exactly mimics the homescreen on iOS!
Don't like your default icons? Well now with most launchers you can replace all your default icons with thousands of beautifully designed icon packs from the play store.
Smart Launcher is one of the "pre-designed" homescreen UI and I gotta say it is a very nice one.
BUT, if you truly want to make your homescreen as aesthetically pleasing as possible, you'll have to manually do it yourself with Nova Launcher. There really is no limitations when it comes to Nova Launcher, here are some very nice themes that others have built (source: reddit @ /r/androidthemes):
But that's just the homescreen. If you really want to change the aesthetics of everything (animations, system UI), you'll have to flash a custom ROM like Cyanogenmod/LineageOS through your Android's custom recovery. FYI a custom ROM is basically the same concept as a launcher, but it applies everywhere throughout the device. I'm currently running my Android device on a ROM called ResurrectionRemix and I can change everything from the fonts to the animations and I even get features that I've never even had before like double tapping on the status bar to lock your device.