Recently, I've been thinking about designing an international conlang with the goal of making poetry (meter, but also other kinds of aesthetic writing) easy. These are some ideas I've had:

• The consonants should be not too hard to distinguish when being heard, to allow for hearing a recited poem. Similar-but-not-equal consonants are nice though, because rhymes with them are quite beautiful. I don't think it's really important that any new speaker can easily pronounce them. Unlike an IAL, a large consonant inventory is not barred here.
• I'm not sure about vowels, vowel length, stress, and whether the language should be tonal. I don't have any experience with poetry that plays with these, so perhaps someone else can give me a hint.
• Diphthongs are good, more smaller words. It's also possible for diphthongs to form across word boundaries like in Spanish, which is really nice since it allows you to alter syllable patterns by reordering words.
• Consonant clusters are probably good too, since they allow for smaller words.
• The grammar would allow for a completely free word order, to allow for easy rhyming. It can and should probably be ambiguous sometimes, but not too much, because that would make it hard to understand. I'm not sure how subclauses would look like.
• The vocabulary would be sourced from the world's most spoken languages or the vocabulary sources of most spoken spoken languages, so it'd have stems like: "bio", "bov", "pre", "post", "log", (Latin and Greek), "tian", "guo" (Chinese), "safar", "amir", "kohl" (Arabic), and some words from Hindustani. It would prioritize stems that are common across the world because they were cross-borrowed. There could be many synonyms for words, one sourced from each language.

I've been working on a "prototype" for such a language recently. Here's a poem containing the first article of the universal declaration of human rights (try reading it out loud, ortography is IPA)

ata somunosa / ome elibe nake eigen / iba kodigena esem / un kobalego esem.

tome itamdauba kopinoke un / tome itamdauba kosinoke un / some idek aik asamflat eipum / some asasam komesom ke un

MOD.all NOM.human / NM.3 MOD.free LOC.MOD.SR MOD.VB.born / have ACC.dignity MOD.same / CONJ ACC.right MOD.same

DAT.3 VB.PT.give ACC.think.can CONJ / DAT.3 VB.PT.give ACC.feel.can CONJ / NOM.3 VB.should MOD.VB.do ADJ.feeling.brother MOD.VB.think / NOM.3 MOD.are.same ACC.3.different SR CONJ

"All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a spirit of brotherhood."

I'm quite proud of this poem. However, I've been working on this alone and I don't feel like I have the necessary experience to make it good enough. I think that if I really want to do this and design a good conlang I should start over.

Does anyone here have any experience, ideas, or thoughts about this they want to share? Does anyone want to join me in this goal, and perhaps work with me on a new conlang based on these ideas?