I think you did well!!!!!
Indycals are very good decals. I have been manufacturing decals for myself since the 1960's and commercially since 1983. They do need extra work around corners and edges. I use Walthers Solvaset as it is the strongest solvent out there. Walthers has made this cince the 1930'!!!
Just for comparison here is my Revell Mustang with Indycals.....They went down well with warm damp paper towels and solvaset without issue. I did mess up a decal on a Porsche model and they sent a replacement right away. Thx