Cheers fella! As usual I made it up as I went. Initially I wanted to make the green goop look alive (initially tried painting gaping mouth parts green, really sucked!) so I prototyped how to sculpt it in green plasticene. Then thought I'd do a colour sketch with acrylics over the plasticene (think I put a layer of PVA down first) then thought I'd test green & yellow glazes over the sketch, by whch time I couldn't face trashing it. Obviously plasticene isn't at all stable hence the balsawood beam surround (roughly hacked with a scalpel, painted & dry brushed, pinned into sides of goop and PVA'd to concealed wood base). The dock is same treatment on wooden stirrers of various sizes (quick light-fingered tour of coffee bars and fast food joints). Wall/door is foam board, I soaked and rubbed away the paper on one side, gouged the gaps and joins with a pointed scalpel tip then drew in the texture with a ball point pen, painted, dry brushed. To fit the wall I had to trim a strip of goop away, and noticed the painted surface lifted from it as a single strip of film. Hmmm, wondered if it would stick to the wall if I placed it over wet 'ard coat, that worked. plus some feather in with green to get the foul spillage from the pipe. Oh yeah, added a figure as well (which was kinda the whole point of the competition!)
Update:
Idea... Not relishing the prospect of free hand painting Tony's big soppy MLP eyes as they will probably be the make/break factor of the project. Re above film transfer accidental discovery, maybe I could freehand a whole bunch of eyes onto plasticine (or polythene sheet) and apply the best matching pair as 'decals'. Seems a fairly risk free experiment... tbc. Any experience or advice on this folks?