What I'd like to know is how this "remarkable similarity" came to be. Having the main body of the map looking the same is easily understandable since you're both working from the same stage, but the enemy positions is harder to explain.
I know some people like to take maps from VGMaps and add whatever things they feel is missing on them, which I first noticed while "googling" my username to find an old post of mine and came upon a game strategy wiki talking about using one of my maps and doing just that, though they did mention crediting me. I also recall a controversy on a Metroid forum a few years back where (I think) two teams were working on mapping the game but one apparently took the other's work and simply added the sprites and claimed they had done it all, though some things revealed the theft (same exact parallax background alignment everywhere, same exact transparencies, etc).
Whatever theft or "inspiration" took place, it unfortunately calls into question the authenticity of all your other work, no offence intended. Heck, even looking too close at someone else's maps when you're trying to map the same game call lead you to want to "borrow" inspiration for things that look better than what you wanted to do (something that's scaring me about sanjuro's Solstice maps actually). It's no wonder so many creators refuse to accept any unsolicited work in case it could either influence them or call into question the validity of whatever they might already have made in case it matches a submission too closely.
