Hi everyone - newbie here... I've just created my own cipher and
really want to know how easy/difficult it is to crack. Anyone who
feels like having a go, that'd be great!

IGA.XILU / FHB.ICFFFF / IGB.GF-KQ / FM.HC-GKI / IGI.CGEED-C / GC-.IG-
U-G / FV.LK-HD / FGE.GPRHE / FM.HC-FIEC / MT.GN-FB / HGA.EH-REI /
FT.D--DMH / IGA.FEHTHB / NX.-IFQF / FHD.F-EGD-I / KFB.WCDGF / GCA.-
HCSM / NX.KFEIG / FBH.H-EDEIG / MW.FFCIGH / N-A.CEIEEI / JFC.IEIHFD /
LM.GPBIE / N-D.EBHBHB / IGD.GRCEHA / FHB.IE-KCB / IGA.----IDF /
FCF.EH-D-EB / FCD.DTHRI / HH-.V-E-HA / N-A.-CD-CE / KFD.FHHIIB /
JFB.BICFA / N-A.-DGC-E / GGF.-GCGEY / HW.E-BIEHD / HGG.D-O-IA /
IEB.EGEFDIA / KDC.HDHGGE