It is very elegant, but it has solved the challenge of writing Greek cursively, in ways that will be unfamiliar to Greeks. Of course, these days Greeks are unfamiliar with cursive itself. But in particular:
- Your π takes off too soon by having its left foot joined to the previous letter. As a result, it is hard to recognise as a pi at all. Admittedly the proper cursive pi, ϖ, is different enough to be unrecognisable to most people nowadays. If that is a non-starter, at least try to make your pi look more like a cursive n. You’re the first pi is more recognisable than your second.
- Your υ has a right stem, which makes it look disruptively Western. The end of a cursive upsilon should look symmetrical to its beginning, joining the next letter from above. You have done so with your second and with your final upsilon.
- Do have a look at 19th century cursive for ideas. I’ve posted a picture with an answer somewhere. The downside is that, as I mentioned, few Greeks and even fewer non-Greeks will recognise nowadays the peculiarities of the old cursive.
It depends on how you want to use your handwriting. If it’s for your own purposes, keep doing what you’re doing. If you want to be understandable by others, cursive these days is something of a risk, especially with non Greeks (but do get confirmation from non-Greeks on that). If you want to fit into the historical tradition of cursive, you are well on the way, but will need to think about a few letters, to make sure they look both distinct and Greek.