How to create a pseudo language in 13 easy steps.

[ololololo]

This just doesn't feel like a real language. Real languages have all developed a logical structure. The structure is typically based around the need to make speech effortless and light. The organs of the mouth cannot cope easily with pronouncing a string of discordant consonants, or shifting constantly between back and front vowels, so any cut-and-stitch attempt to construct an artificial language will not succeed. For instance, 'biqgbeqo' and 'bebeoaob' feel unpronounceable in any of the European language groups. They are too laboured, and require too many mouth movements.

By comparison you will find that a sample from a language you do not understand will at least seem to flow nicely, will feel to have a consistent phonology, if you were to make some endeavour at pronunciation:

Kaikki ihmiset syntyvät vapaina ja tasavertaisina arvoltaan ja oikeuksiltaan. Heille on annettu järki ja omatunto, ja heidän on toimittava toisiaan kohtaan veljeyden hengessä.

As I understand it, this is an imitation of language, not the language itself. You don't have to read this text. You just need to rewrite it with other characters.
I once came across a Chinese poem written in ancient Chinese... Then there was a sharp r sound, and I wouldn't say it sounded consistent or "beautiful"...
However, the characteristic of imitating a language does not apply to Voynichese. It is simply a methodical gibberish (but I don't think so)