Here's a piece by an obscure Czech composer Vladimír Štědroň, who (if correct) lived from 1900-1982. Additionally it is not clear if this work is actually entitled "Illusions", as the wikipedia page (only a Czech wiki page, but it is easily translated) has in his list of works a symphonic poem instead called "Delusions"; rather similar in name to "Ilusions", but perhaps he wrote two such works and one is not documented on the page, but I dunnoooo. There is also apparently an LP from the 1970's called 'April Orchestra' Vol 26, which contains another symphonic poem by Štědroň, this one called "Fantomes". The albums also includes works by a composer named Emil Hlobil, who I don't think I know, but then again who knows I might have some compilation somewhere..
Here's the (relatively useless, besides a list of works) wikipedia page for Vladimír Štědroň:
I couldn't even find a photo of him to post, only a 'Milos Štědroň' comes up in a search, whom I think is a relative to the composer. Additionally I have no idea who are the artists or Orchestra involved. The sound is descent however, perhaps this recording is not as old as the LP I mentioned. Stylistically I find the music of his compatriots Novak and Suk coming to mind especially. Although I will say there are also a couple brief moments that, to my ears, would not be entirely out of place in a Prokofiev or Stravinsky ballet score. So, give a listen and see what you think..