i use mr. hobby's mark setter for all my decals,
and then when it all dries i apply a layer of clear coat using a brush
yeah i had bad experiences applying decals for my first Alto,
when everything came off as soon as i started transforming it
hell it came off even if i touched it
talk about learning things the HARD way
i had to have a lot of patience doing the decals.
sometimes you have to wait for a decal to dry, apply clear coat,
and then only proceed to apply any neighboruing decals.
definitely, you need to finish the top part of the ghost,
before starting to apply decals for the bottom part (or vice versa)