Posting into the void... I know how that feels. If it's any consolation, your work is
getting seen and appreciated - even if you don't experience it first-hand, there are people out there who like what you're doing.
DeviantART isn't really the best place for genuine artist appreciation - sometimes it's more 'DeviantSPACE' than 'DeviantART' - but I have yet to find an outlet that is as popular or pervasive.